I owned a Wii and 360 early on in their life cycle and ignored the PS3 until about 2009 when Quantic Dream's next game was getting hyped beyond belief (was a big fan of Fahrenheit on the Xbox) and Uncharted 2 was dropping everybody's knickers in a flurry of rave reviews. I found my two killer-apps and picked up LBP on the cheap and I haven't looked back since. After paying £40 a year for online gaming on the 360, it was a breath of fresh air to get the same surface for free. The console didn't sound like a vacuum cleaner when I turned it on, the controller didn't require batteries and I had a wireless connection without having to pay £60 for some overpriced adapter (fuck that!). And boy did those exclusives deliver. LittleBigPlanet, which I didn't fancy the look of and purchased solely because of the reviews/price, grew on me like foot fungi. Uncharted 2 was instantaneous love, while Heavy Rain and Yakuza 3 came out a couple of months later and quickly joined the ranks of my favourite games. Not quite as strong an introduction to a console as the triple-whammy of Sonic Adventure, Power Stone and SoulCalibur, but close.
You add in future pro-consumer features like PS+ and Crossbuy, plus a steady stream of excellent exclusives, and it's no contest who the victor of the home console market is this gen, imo. And the best part is there's more to come as well. As excited as I am for what the next gen has to offer, I'm more hyped right now for the likes of The Last of Us, Rain, Beyond, Yakuza 5 and Puppeteer.