This is a hot deal. It seems obvious to me thaat people are thread crapping this deal for personal reasons. So far here is what seems like the arguments against this being a hot deal:
1- Wal-Mart is an evil soulless corporation that exploits people.
I don't see what this has to do with whether the deal is hot or not. You think Apple is some kind of charity? Where do you think your iPod is assembled?
2- WMA9 uses DRM and isn't an open format.
Apple's AAC uses DRM that is nearly identical to the WMA9 requirements, right down to only letting you copy your music to only two other computers. And I wouldn't hold your breath waiting for a major online store to release songs in MP3. Let's see, AAC can be played on how many players? WMA9 currently is supported by tons of players (supposedly including even the iPod), and support will be even more pervasive in the coming months.
3- The songs are censored.
This is a valid point. It is definitely something you should be aware of before you buy. However, while it may be a bug to some people, it's a definite feature to others. Wal-Mart doesn't put out "clean" albums because they hate their customers, or they hate musicians, they do it because their customers ask for it. If you're a parent, and you want to buy your kid some music, you don't have to listen to the entire album to find out if it's okay for your kids or not. Which is good, because most kids listen to crap, and you can't return it anyway.
In my view, 10% off and playable on way more music players, even with the (possible) caveat of "clean" songs does qualify as a hot deal.