The 58 white crosses that appeared overnight on the Las Vegas Strip are proof enough it will be a good while before it is business as usual in this place that calls itself "The Capital City of Fun".

At the Welcome to Las Vegas sign at start of the Strip, the tourists are again lining up for their photo opportunity.

Although now, the banner slung behind the iconic sign saying "Vegas Strong" will ensure for evermore photos of their time in Vegas will be a reminder of this terrible tragedy.

The tourists are still arriving but in fewer numbers.

Crosses marked with the names of those killed in the Las Vegas shooting. (AAP)

Hotels and casinos have experienced an extraordinary number of cancellations.

Those who did come decided it was the right thing to do.

Coleman Ross, who was waiting in line for a photo, sensed a more sombre mood around the city.

"It's a little different to what it would've been like," he said.

"But I think it's time to show support and come together."

Messages of support to first responders at the site of the shooting, the Mandalay Bay hotel and casino. (9NEWS)

Out in front of the casinos the huge video signs usually advertising acts such as Elton John or Cirque du Soleil have gone to black with simple white messages: "Las Vegas Strong" and "Our prayers for the victims".

At the Vegas welcome sign, Australians Steve and Lee Saurins and Sue and Bruce Pinnock from Newcastle thought seriously whether they should come.

"We had a bit of a family meeting and decided to come because of the fact it wasn’t terrorism," Mr Saurins said.

"We're really glad we came," Ms Saurins added.

"Even though our families at home are so so concerned that we were coming here."

The Elvis impersonator collecting dollars from visitors for a photo said he had been doing his best to cheer people up.

"But there's a great big hole in our hearts, although we have to continue to move forward," he said.

The night after the shooting nearly every show on the famous strip closed down.

When the lights came back up as the week went on, entertainers such as Celine Dion gave emotional speeches.

Celine fought back tears standing on stage by a giant screen saying "Las Vegas Strong".

Tourists have left tributes at the famous Las Vegas sign. (9NEWS)

Las Vegas is many things to many people.

Some come to gamble, others to party, many more to take advantage of Nevada's "quickie" marriage laws to tie the knot.

The Little White Wedding Chapel with its giant Elvis (with swinging legs) billboard usually holds 20 to 30 marriages a day.

But in the days following the attack, dozens of couples cancelled.

Mark Molyneux and Susan Riley made their marriage plans months ago and stuck to that plan flying in from Leeds, England.

But in the days leading up to their wedding they kept the TV news turned off, managing successfully, to keep their young children from hearing about the attack.

They wanted the kids have only pleasant memories of their time in Las Vegas.

The military style Humvees from Battlefield Vegas, the firing range just off the Strip, were also back on the streets picking up customers from the hotels.

At the military museum and shooting gallery, for just $29 you can fire hand guns and assault weapons.

Robert Penfold prepares for a cross from Las Vegas. (9NEWS)

The Battlefield Vegas manager gave a "no comment" when I asked if number of people wanting to shooting weapons similar to the killer had dropped off.

In the waiting area there were still a good number of tourists lining up to have their fun with a big, deadly gun.

We drove out into the Vegas suburbs to meet a true stage legend, female impersonator Frank Marino, star of Divas Las Vegas.

Marino was back at work filming a reality show for British TV.

He is hosting some old-time English comedians and singers, showing them around Sin City.

The reality series will culminate with a stage show featuring Frank and the visitors.

Marino was happy to halt filming for a while to send Australians the message that people shouldn't be "frightened off by the acts of one madman".

"Las Vegas is for you. Come here and remember we are still the entertainment capital of the world," he said.