I have two PCs, an old IMac and a laptop. I really probably could downsize. I'd love a flat screen fruity-colored newer Mac with dual environments. I get to dream, right? Anyway, I never seem to have issues with my Mac despite it's age (6 years, which is like 150 in computer years?) With my PC's I often have issues and have tried taking steps to remedy them. Like recently, I lost a whole bunch of data thanks to a huge computer "crash." I have since installed StompSoft's PC BackUp
http://www.stompsoft.com/pc-backup/pc-backup.html to back up my important files. But I never have issues with my Mac. Luckily, with some intervention my PC issues are manageable with software such as this product and other precautions that I often am too lazy to do.