Lets take the case of a ThinkPad T510 vs a 2010 MBP, the thinkpad is going for 250-350+ (low of 100 for parts and a high of 600 for a refurb system), the MBP 450-600+ (250 for a low, and 1000 or so for a refurb system) - the Apple clearly has the better resale value - that said, I think anyone buying a piece of consumer electronics for resale value is a fool - I recently bought a rMBP, simply because power for performance was better bar none than anything else I could find in the same class (read ThinkPad) - plus I wanted to give OSX a try, I wanted a Unix workstation that could run MS Office (I need Excel - and LO/OO Calc is not a suitable replacement) so that basically left MacOS - and I'm supremely impressed.