1, Take the cover off you void the warranty
2, Stuff up soldering the chip in you wreck your XBOX oh and you have no warranty
3, You can not restore a physically modded xbox to a original state with this mod a quick entery of a code say aabbaa and it is back in original state.
4, Mod chips can't go on live (this one you can and it works for now)
5, Mod chips need to be reflashed for new games. you can only flash a bios so many times and if you stuff up lose power etc xbox is toast.
6, I don't know how to solder
7, It is not your XBOX
8, Your mom dad won't let you (for the kiddies)
9, Cause all you want to do is run Linux on your box and not pirate games
10, Because selling mod chips is illegal and the guy who sells mod chips is usually the same guy who sells the pirated games.