I would definitely give Craigslist a try, too. In my area, certain towns/cities also have "yard sales" on Facebook, too, so a quick search through those groups may yield a console. That being said, you usually have to seek approval to join the groups, but you can usually find dirt cheap games and consoles.
I can tell you, if you have a game-reselling store in your area, avoid them for this purchase. The novelty factor of owning this console has made the price dramatic in these types of stores (a few years ago, I found one at a Vintage Stock for $300!). It's ridiculous.