A couple years ago I was working as an independent contractor and my Macbook started having problems. I ended up needing help from local Apple repair folks. It cost me maybe two days of billable hours.

I wouldn't expect Apple to reimburse me for lost work; that's a risk I take when I buy and depend on a computer. But that risk certainly makes me take risks like "your keyboard may stop working and take a week to ship off and repair" into considering when buying something. I wouldn't buy one of these models with notoriously fragile keyboards.