Are the keyboards replaceable in laptops? I'd hope so, because they do wear out, I've gone through 3-4 of them in the life of my computer.
Yeah, they're replaceable. Just involves prying up a cover piece usually, I think. Dunno about costs involved, though.
Luckily this thing has been really pretty durable, considering the tough life its led! Surrounded by dust and puts and with me beating on it all the time...