I believe even Walmart offers extended warranties on electronics products now. Generally, most of our electronics come from Best Buy and we get the two year extended warranty. I used to think it was a waste of money, but no one makes quality products anymore so you kind of have to buy the waranty.
After too many electronic devices that failed right after the one year warranty was over, I also started purchasing the extended warranties. I recently purchased a television from Walmart and they do indeed offer a warranty plan now.
I didn't have problems with my Xbox but I had to take my TV back after only one week, a while ago. Ever since then I think ahead and extent every warranty possible, it's a shame to have something broken and not be able to fix or replace it. Especially when it costs a pretty penny!