I'd have to say a combination of free/dedicated servers. I've really been getting hooked on big player games like Warhawk and Resistance 2. Then games like Fat princess will only further my enjoyment of the online experience. Which leads me to...
The PSN. For it being so early on in the PSN's lifespan, the service is just fantastic. It offers some of the best games I could ever hope for, at extremely budget prices. Wipeout HD, PJ Monsters, PJ Eden, super stardust.. to name a few. They offer just incredible new titles from a plethora of different company's, and it's the best service for this content in my opinion.
Then it's bell's and whistles. I LOVE the blu-ray player, the wi-fi, the browser, and bluetooth support. It's just an amazing machine ^_^ I think my personal favorite of all time in terms of functionality and offerings.
From 0 to KICKASS in .stupid seconds.
