My experience with Dell laptops seems to match up with your experience on the MBP. If something is going to fail, it will usually fail immediately or last the "lifetime" of the device. Batteries being the main exception as those age out fast ..
On the other hand I bought a refurb projector from BenQ and it was straight up junk. The focusing mechanism breaks easily. It's quite clear this is a design flaw, I assume a gear that's weak plastic that should be something more durable instead. I've sent it back twice now to have it fixed, paying shipping each time under their terms. The last time I got it back it died with just 15 hours of use. It's clear they knew this thing was a straight up lemon and just used their refurb program to dump the product. It certainly means I'll never touch another BenQ product so long as I live.