For whatever reason, the bad economy, the IRS investigation into nightclub operator Pure Management Group or just luck, things have been fairly low key of late in the Vegas resort nightclub scene. Even more scaled back in Vegas lately is the penchant for endless sucking up to select tabloid celebrities.

Instead, the Las Vegas club scene has mostly used models not known by their own fame, but unknowns piggybacking on better known titles, like former Playboy Bunny or Miss Nevada.

Also, porn stars like Tera Patrick are becoming more of a regular attraction for hosting. What I have heard is that some clubs are pleased that they can still get big lines without paying the big bucks to have a celebrity host.

Not that there haven't been some serious exceptions. Christina Aguilera, left, paid a highly publicized visit to LAX at Luxor this weekend. But Aguilera is one of the celebrity investors. In fact, when was the last time anyone saw Paris Hilton in Vegas? It has been a while.

But Vegas' Paris Hilton jones is about to get sated Friday, when Miss Hilton returns to Vegas for an advertised appearance at TAO at Venetian.

This is interesting for a couple reasons. First off: in terms of advertised appearances, Hilton has been reasonably loyal to Pure Management Group nightclubs (including PURE at Caesar's and LAX) that reportedly have paid her plenty to party there. On top of that, PMG, in a massive gesture of sucking up, even helped arrange a packed screening of her movie for her to sit through to build her self-esteem (like her self-esteem was a delicate flower that risked extinction). Loyalty means nothing, it seems in the nightclub world. And, this appearance will be especially high profile. Hilton's night at Tao nightclub is in reality a taping of her new reality show "Paris Hilton's My New BFF."

In addition to loyalty, common sense is also not valued in the Vegas nightclub world, at least when compared with promotional acumen. The other celebrity returning to Vegas is another former LAX and PURE regular, lesser-of-two-evils parent  Kevin Federline.

Federline this time, though, will be heading to the increasingly hot Privé at Planet Hollywood. Of course, he has a special incentive. Privé's excuse for Federline hosting there (as if it being Friday the 13th wasn't reason enough) is sure to grab headlines. To quote the press release: "Kevin Federline to be named Father Of The Year at Privé Las Vegas."

Yes, partying Father's Day weekend at a Vegas nightclub is, in the opinion of Privé nightclub in Vegas, the stuff that makes for being selected Father of the Year. I have written to Privé to ask for an interview to answer some basic questions:

• What was the process used to select Kevin Federline as Father Of The Year by Privé?
• Who were the judges?
• And, what in their opinion really placed Federline above all other fathers this year?
• Would one of the judges be available to discuss with me what really impressed him/her about Federline's skills as a parent?"

I'll let you know when I hear back.

(Photo courtesy PMG)