@capnhaggis: I mean, yeah, you should, but moving your saves and eShop purchases over is impossible (or maybe just an enormous pain? I don't think there is any way to just deauthorize your original 3DS and transfer it all to the new one). But yeah, the screen is really nice.
The 3DS has system transfer. You can use it to bring over your files and remaining wallet balance. It does take a bit though.