Recently, I've upgraded my 3DS into an XL along with buying Animal Crossing. With Pokemon X/Y, Zelda: A Link Between Worlds, and Super Smash Bros coming out. I will be playing these games frequently along with Kingdom Hearts: Dream Drop Distance.
My previous 3DS had both shoulder buttons (L and R) not work. My guess was that I've carried my 3DS in my pocket without a case, and have played Mario Kart 7, Kid Icarus, and Kingdom Hearts too much.
Even now, I still carry my XL in my pocket without a case and still play Kingdom Hearts a lot. How reliable are the shoulder buttons on the XL? I want to at least have a 3DS that reliably works for at least 2-4 years. Will getting a case also help me protect the shoulder buttons when I carry it around?