So chances are that 2000-3000$ piece of equpment have less faults than 300$-3000$ piece of equipment?
The problem with your argument is that you're doing a comparison of vastly different hardware and target markets. Lumping all Windows manufacturers and their laptop series into the same basket causes disenginous argument which is sadly perpetuated by Apple marketing.
Doing a relevant comparison like Apple 13" MacBooks with Lenovo's comparable ThinkPad series usually shows very comparable quality hardware and software wise.