The other issue is... take with a grain of salt any ad on Craigslist.

A few weeks ago, there was an ad for "Osterfeld Worldwide" on Craigslist making all sorts of outrageous claims (largest male modeling agency in the world, single photog for the biggest gay company in the US, etc.) which upon inspection turned out to be totally bogus. They were making all sorts of inflated claims, and just last week, another bogus scout hit up AJ on Myspace inviting him to model for Falcon (if you've ever met AJ, he, at 5'4 and 130 lbs dripping wet, is about as far from a Falcon model as it gets.)

There are a TON of so-called "agents" or "scouts" who get paid for models they refer to various studios, and some of them float the $2500-5000 per scene number out there, knowing that while there are numerous studios who do, in fact, pay that, the vast majority of models who respond will end up working for small twink studios that pay a tenth of that.

Models who are in the jock/college boy sector and work for the bigger producers are regularly paid $1500-5000/scene, and more is not uncommon. I'm not familiar with the pay rates for the 25+ crowd, but I assume that's up there too. Twinks generally get paid less, depending on the studio or site.