LAS VEGAS — The boom in high-rise condo projects in this city's canyon of casinos known as the Strip has spawned its own new status symbol — the celebrity resident.

About 8,000 condominium units are under construction or about to start, according to SalesTraq, a Las Vegas real estate information company. It's a building explosion fueled in part by speculators in the torrid real estate market here and the desire of buyers from California and Asia to own a piece of Sin City's action.

But like everything Vegas does, this building bonanza comes with an extra helping of glitz: Developers are using Hollywood stars to make their projects stand out from the more than 100 residential skyscrapers proposed for Las Vegas.

Leonardo DiCaprio and Tobey Maguire have purchased units at the Panorama Towers complex. Jessica Simpson has reserved a unit at Palms Place, the 50-story high-rise planned at the Palms Hotel and Casino. Baseball Hall of Famer Reggie Jackson has snagged a spot at the Icon Las Vegas.

"I am sure these celebrities are getting very good deals," said Peter Dennehy, senior vice president of Sullivan Group Real Estate Advisors in San Diego. "It is a marketing thing. People want to live near the stars."

But some analysts wonder if the market will be left with a Las Vegas-sized hangover in the form of a real estate bubble fueled by the large number of speculators — estimated to be as high as 40 percent — who never intend to live in the units they are buying. The high-rise condo market has proved to be particularly sensitive to market gyrations, said Delores Conway, a University of Southern California real estate economist.

Las Vegas isn't the only town that is going vertical. High-rise living, a long-standing tradition in New York, has spread to the likes of Boston, Denver, Miami, San Francisco and Kansas City, Mo. At least half a dozen new Southern California condo towers are planned for the Los Angeles area.

Nationally, the number of condominium and town home development construction starts jumped 38 percent to 120,000 last year, according to the U.S. Census Bureau. And that came on top of a 23 percent gain in the previous year.

"Cities across the United States are booming with these projects and many of the developments are quite spectacular," said Max Neiman, senior fellow at the Public Policy Institute of California.

But with so many high-end properties on the drawing board, it's easy for a development to get lost in the crowd. That's where the celebrities come in, assuming the real estate equivalent of a walk-on role: Most aren't investors in projects, but their presence gives condo buyers the hope of an occasional star sighting near the mailboxes.

Don't expect anything so crass as celebrity advertising endorsements; Vegas developers prefer the subtle approach, placing tidbits in gossip columns and prominently displaying celeb glamour shots in sales offices.

"It makes a building cool and hip," said Dennehy, the real estate consultant. "You always want to sell lifestyle when you are selling condo projects like these."

Even in Las Vegas, once one of the more affordable real estate markets, no one considers these condos to be inexpensive housing.

A 972-square-foot one-bedroom unit at Icon Las Vegas, the future Reggie Jackson hangout that Related Cos. is building, starts north of $600,000.

"If one of these condos were in the $300,000s, I might do it. It would be nice to be just minutes from work," said Chris Dingell, a senior planner with Clark County. "But I can't afford what they are asking for the units on the Strip."