Not sure about elsewhere in the country, but here in Salt Lake City it's virtually impossible to find the Wii. I sold our XBox 360 a week or so ago (in under 24 hours) on Craigslist, given its paucity of kid-friendly games. Yesterday I went in search of the Wii to appease my eight-year old son's thirst for Mario.
But we couldn't find one...anywhere. I called and visited every store in the Salt Lake Valley that carries electronics, to no avail. My son suspected that I was just pretending as my wife and I aren't big on having our kids fritter away time on games.
Later I decided to check Craigslist to see if someone had a Wii for sale. Two hours later in a Shopko parking lot, I had a brand-new Wii for a $50 markup (much better than the $100+ markups on Amazon.com). Beautiful.
Craigslist is near perfect. But for the fact that it won't allow a pan-US search for goods, I am nearly willing to start a religion around it. It has worked for me before in selling things; today it worked even better in buying things.
Why? Because Craiglist makes foraging in the offline world much, much easier...online.
P.S. Javier, you can run, but you can't hide.