I was a life-long PC user until I got my first mac 2.5 years ago. Two and a half years later, it still runs like the day I got it. I can leave it run for weeks at a time without a restart, and I can count on one hand the number of times it has locked up or crashed. I did have the graphics card die on me once, and I have to say another key difference, having dealt with technical support for PC (Dell mostly) and Apple, Apple's customer service and tech support are second to none. Since Apple makes both the operating system and the machine, you don't get issues, as I did as a PC owner, where Microsoft from the OS standpoint, and the PC manufacturer are standing there pointing fingers at each other. Sure it's more expensive–the "Apple Tax" if you will–but it's a price you pay for exceptional quality and reliability, backed by outstanding tech support and customer service.