Surprising how many people have asked me if I was going to upgrade my "Original XBox" to a new 360. Aside from the price, lack of support, etc. This is a ".0 Microsoft product". You can't trust those. ".0" releases from Microsoft are guaranteed to be one thing; buggy as termite mound. Do a quick search today and you'll find people complaining about overheating problems. I'm not surprised. There were also murmers of people saying that it was BSODing ... well, it is a Microsoft product after all.
Wait for the service pack. Then, if you still want a game that has some titles, but not many, and "kinda backwards compatibility", but not all.... go for it.