Ok, I've been tip-toing around this thread for a while now, undecided whether to chip in or not... But here it goes.
There are several reasons why a TGP2 gallery converts better than a TGP gallery. ONe of them is, of course, the increased amount of advertising spots. Another is the fact that TGP2 galleries do not offer enough content to get off on, but only to tease. And we all know that a horny surfer, with his dick in his hand, looking to get off, is a profitable surfer.
Now onto the "I'll lose my traffic if I convert" part. That is true. No matter how many "big guys" would choose to convert their sites to TGP2, there will still be 100 more behind them to take their place, stupid enough to believe that if you give the surfer enough to get off on, he'll sign up to a porn membership out of gratitude.
The absolute biggest problem in this business is that there are far too few professional businessmen and way too many hard-headed amateurs. Let's face it, how many actually have basic marketing or macroeconomic knowledge and are able to apply any of those theories to their online porn business? And most don't even bother to check, even if information is very easy to find online. The days of slapping together a few pics and a few sponsor links on a page and make bank with those are long gone. It's time we start taking a more professional approach to this business. We're in this to make money. TGP2 will make you more money. Period.