As the Giants approach the end of another unsatisfying odd-year season, the faithful justifiably have begun looking toward 2016 with a mix of sentimentality and practicality.

The practical folks look at the gobs of salary coming off the books this winter and have firm ideas on how management should spend it to get the team back to even-year glory.

The sentimental look at the names behind those numbers, knowing some of their favorite players will not return.

The Giants’ final 2015 payroll will reach about $180 million. Of that, nearly $50 million comes straight off the books with the expiring contracts of Tim Lincecum, Tim Hudson, Marco Scutaro, Jeremy Affeldt, Ryan Vogelsong, Mike Leake and Alejandro De Aza.

Another $19 million in potential obligations could disappear with three players who have team options for 2016: Marlon Byrd, Santiago Casilla and Nori Aoki, although the Giants surely will exercise Casilla’s at $5.5 million. Byrd seems less likely now to reach the 550 plate appearances for his $8 million option to vest.

Some of the savings will go toward raises due other players, including $3.5 million for Buster Posey and $3 million for Madison Bumgarner (the best bargain in baseball), and arbitration-eligible players such as Brandon Belt and Brandon Crawford.

For now, 13 games remain in 2015, including seven at AT&T Park and three in Oakland. This should be a time for the sentimental to prepare goodbyes to some of their favorite Giants.

Here’s a look at the seven Giants who have expiring contracts and the three with 2016 team options, (with their 2015 Giants salary obligations in parentheses):

FREE AGENTS

RHP Tim Lincecum ($18 million): His value as a pitcher, icon and franchise-changer need not be repeated ad infinitum. Fans had no trouble looking beyond his performance decline and were heartbroken that his Giants career potentially ended with a hip operation. But there’s a lot of talk about Lincecum returning next spring at least on a minor-league deal. So “goodbye” might just be “au revoir.”

RHP Tim Hudson ($12 million): He and his new fans on the west side of San Francisco Bay were blessed to have one another over the final two seasons of his career. He got the World Series ring that eluded him and the fans and team got a class individual and mentor to younger pitchers.

2B Marco Scutaro ($6 million): A championship hero who deserved every penny of the three-year, $20 million deal he got after the 2012 World Series. Only a coldhearted person could call that deal a “bust” after he sacrificed his body to help win that trophy, then somehow delivered 547 plate appearances in 2013 despite a badly damaged back and finger.

LHP Jeremy Affeldt ($5 million): Affeldt hopes fans will remember him not for his wacky injuries, but his longevity, 22 consecutive postseason appearances without allowing a run, his crucial performances in Game 6 of the 2010 National League Championship Series and Game 7 of the 2014 World Series, plus his advocacy against human trafficking and on behalf of Bryan Stow.

RHP Ryan Vogelsong ($4 million) : What else can you say about a guy who kept returning to the Giants when he was not their priority and provided important innings when other pitchers went down? Do not count him out for 2016.

RHP Mike Leake ($3.5 million): His story did not turn out the way he or the team had hoped. A 4.69 ERA since his acquisition and arm tightness raise questions about the Giants’ willingness to pay top dollar in free agency for a pitcher they always coveted.

OF Alejandro De Aza ($350,000): The trade seemed like a good idea at the time, but he hardly plays and it’s hard to know how the Giants view his future with the team.

TEAM OPTIONS

RHP Santiago Casilla ($5 million): His $5.5 million option for 2016 seems like a no-brainer pickup for the Giants, no matter his role next year. He is that good a reliever.

OF Nori Aoki ($4.75 million): Injuries and concussions did not allow the Giants to get a full measure of a player who performed well atop the lineup during Angel Pagan’s absence. His option for next year is $5.5 million.

OF Marlon Byrd ($500,000): Even at 38, Byrd has given the Giants that potentially dangerous right-handed bat off the bench that they always struggle to find. His return is not a stretch, but at $8 million? A big question for the front office to answer.

Henry Schulman is a San Francisco Chronicle staff writer. E-mail: hschulman@sfchronicle.com. Twitter: @hankschulman