There are likely only about 1/3 or less PS3 units out than Wii. But every store I go to looking for a Wii has at least 1 (if not 3) PS3 60GB models sitting on a shelf.

Their price is one of the biggest factors I'm guessing. The Wii's control mechanics and fun party games (and lower price) have also made it the must-have console this season. On Ebay it's still fetching between $350 and $650 US daily.

I went out looking for them today and got to ToyRUs just after the delivery truck (perfect timing) - but they received no units. A friend called me to let me know EB Games received stock today but by the time I got to the closest one they were all sold out. Have to wait till next week to try those chains again. I will probably try WalMart tomorrow and I'd like to try Best Buy on Friday, but I'm not sure if they're doing their normal 'hold until Friday" this week.