Only if you have the right warrenty. But when you do, they take care of you. I had a defective touchpad, but it was usable with a mouse. The technician arrived at my work, and while I was in a meeting, he switched it. Done. My coworker had his screen replaced the same way. The cost of not having a machine for even just a week, means it makes more business sense to simply buy a new machine, so this next-day onsite warrenty, is worth every penny unless you have a lot of machines and can realistically buy more machines as spares and come out ahead.
I had Thinkpads until 2011. For hardware repairs I couldn't do myself there was an authorized dealer not far from work who would order the replacement parts (e.g., motherboard) and I'd bring it in for quick repair.
With Apple for a major repair, I dropped it off at my nearby Apple Store on a Monday and had it mid-day on Wednesday.
