All devices have limited memory, but there exist plenty of solutions: USB, external HD, dropbox, etc... anyway, most hard drives nowadays have plenty of memory for pretty much everything you might want.Ain't laptops have limited memory space compared to normal computers? My best friend had a laptop and year ago and well it crashed when he downloaded too much stuff on it? Games music and work files.
Oh, and it's also reusable: my bro's first laptop several years ago crushed because he smashed it's screen by accident, but they were able to rescue it's hard drive and turn it into an external one for the substitute he had to buy. The rest of the pieces are still at home just in case my dad's need them (it's the very same model), so you see.