You are entitled to prefer the bigger look. You can't, hoever, honestly say that you get more of anything with a lager design. The memory is the same; the processors have the same power and speed; the outputs and inputs are the same; and the drive is just as fast.
The only things missing are the auto loading, which is a matter of preference, not in terms of actual use, and the lack of an HDD bay, which was poorly supported anyway (online does come built in), and imperfect BC, but not every model of the larger PS2 has perfect BC. Yet the first two were choices by Sony to leave out. They could have left them in, without any significant extra size (the last was accidental). You don't get any more of something because it is bigger. You get more of something if there is actually more included.
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs
