I bought my PS3 back in January 2008 (a large, 40gb PAL model) and I'm beginning to have some issues with it. The whole thing feels like it's struggling, there's frame rate drops on all of the recent games, downloaded games and DLC (i.e. on the hard drive have a tendency to be incredibly choppy) and most notably, the wireless internet is barely functioning (yesterday it took me 10 minutes to download a 5mb patch). On top of that, the 40GB hdd only holds a handful of the usual 6-7gb installs required for recent games.
Would it be worth purchasing a new PS3? Are there newer wireless cards in the newer models? Struggling to find info online. Any help appreciated! Also, I should point out, wired internet isn't really an option, and my laptop which is sitting right next to my PS3 has no issues with connectivity whatsoever.