Texas Stadium went kablooey in 2010 and its still gleaming replacement, AT&T Stadium, only is in its 11th year of existence.

Poor Globe Life Park in Arlington, a mere 25 years old, is being reconfigured for XFL and soccer while construction workers finish its replacement across the street, Globe Life Field.

That leaves 18-year-old American Airlines Center, home of the Mavericks and Stars, as the oldest venue in use by North Texas’ four major sports teams.

So, Mark Cuban, how do you think AAC is holding up?

“Oh, I think it’s great,” he says. “I mean, no one comes here thinking it’s old unless you know it, right? We keep refreshing it. We’ve spent a lot of money to refresh it. And we’ve got, what, I think another 10 years or so on our lease.”

Actually, closer to 12 years. The Mavericks’ AAC lease expires on July 28, 2031.

Recall that in 2016, Cuban spoke of a “20-year plan” to potentially vacate AAC, saying, “My dream — and this is like the long, long, long, long shot — is to build an arena 20 stories up in the air, where every seat has a view of downtown, whether it’s north, south, east or west.”

In March of that year, Cuban purchased 14 acres less than a mile from AAC (across Stemmons Freeway) in the Design District. By October, the Mavericks’ practice facility was completed on the new property and, soon after, the franchise’s business offices moved to an adjacent building there.

Then in January of 2017, while expressing increasing frustration about the growing commercial and residential density and shrinking public parking around AAC, Cuban asked for, and received by Dallas City Council vote, approval for rezoning to allow for structures taller than 85 feet on his Design District property.

Understand, Cuban’s gripes have never had anything to do with AAC, which was built for $420 million and opened on July 17, 2001. On Jan. 4, 2000, he’d purchased the Mavericks franchise and its share of the impending arena from Ross Perot Jr. for $285 million.

What most has bothered Cuban is what he perceives to be growing inconvenience for his paying customers, Mavericks fans. Most of the development around AAC was done by Perot-owned Hillwood Investment properties. And now? Have Cuban’s feelings changed since his comments of two years ago?

“Over the next five, six years I’ll make the decision of whether I want to stay here, if I want to work with the Stars to improve it, or let the Stars have it and build somewhere else,” he told The News. “I haven’t decided anything yet.”

The reason for the five- to six-year timetable, he said, is that if he decided to build a new arena, it would take several years to plan and build before the AAC lease expires. So it would appear that, for now, the Mavericks intend to honor the lease and remain in AAC at least through the 2030-31 season.

Dallas Mavericks owner Mark Cuban walks off the court following a 124-97 loss to the Phoenix Suns in season finale for both teams at American Airlines Center on Tuesday, April 10, 2018, in Dallas. (Smiley N. Pool/The Dallas Morning News) (Smiley N. Pool / Staff Photographer)

Cuban said no renderings have been done for a potential new arena, but he laughed when The News asked if he’s done a feasibility study on the Design District site.

“Oh, it’s definitely feasible,” he said, noting that the property’s footprint is roughly three times larger than AAC’s.

Two years ago, Stars president Jim Lites told The News that the AAC is “perfect” for the Stars and that the 800,000-square-foot arena has “great bones.”

“I see it more as a 50-year building than a 30-year building,” Lites said. “Maybe more than that.”

The Stars’ season opened on Oct. 3, and the Mavericks’ home and season opener is Wednesday night, against Washington.

Cuban’s five- to six-year decision timetable changes nothing about the present. The renamed “Dirk Nowitzki Way” alongside AAC will be christened in a matter of days. The big Nowitzki statue that Cuban has promised certainly will be placed on AAC property, though perhaps not permanently.

Meanwhile, it’s business as usual at AAC. Along with the new design and Nowitzki silhouette logos on the AAC court, the most noticeable difference during preseason games was the altered lighting, which casts a brighter hue onto the court and dimmed lighting in the seating area, theater-style, similar to New York’s Madison Square Garden.

MSG, built in 1968 but refurbished multiple times, is by far the NBA’s oldest arena. The next-oldest are Minnesota’s Target Center (1990) and Utah’s Vivint Smart Home Arena (1991).

Eighteen of the NBA’s 29 arenas are older than AAC. Compared to similar-aged arenas in Washington, D.C., Miami, Denver and New Orleans, AAC looks practically new. Cuban said fan perception of an arena’s age largely is affected by the centerpiece videoboard.

“We were the first with a high-end, high-def board,” he said. “That was 10 years ago, so I guess it’s time for a new one.”

Note to fans: Most videoboards, no matter how large, are movable from arena to arena. Asked what he might do with the current AAC videoboard if he and the Stars go in on a new one, Cuban shrugged.

“Eh. Sell it to SMU, or something.”

The new lighting and court design are not the only Mavericks-related sprucing up Cuban paid for this summer. The team plane has new carpeting, reupholstered seats and significantly improved WiFi.

When asked how much he spent on the plane improvements, Cuban again shrugged.

“I don’t even know. I just told them to get it done. I haven’t been on it.

“I told them to make it a lot nicer, now that Dirk is done (messing) it up.”