I sold my DS Lite like you guys said to

[mysticwolf]

d21lewis said:

Did I ever mention that I have six DS systems. I don't bring it up very often, I know. Anyway, there's a reason I have six DS systems. Now, you also know why.  I knew what your problem was before I even clicked on the thread.  It's probably going to be an issue with the 3DS, too.  Nintendo likes to print the serial number on a sticker that is easily removed or the print rubs off if you actually play with the device.  It sucks.

Yeah, I'm thinking they do it on purpose to prevent stores like Gamestop from supplying as much used hardware, therefore leaving them with the option of buying new.