My reasons for switching in my teens were fairly simple: I’d been playing fewer and fewer PC games, and spending increasing amounts of time using my computer to manage the music library linked to my iPod. My first three computers were PCs, although the house I grew up in had an ailing, hated Power Mac Performa. But last month, after Apple announced its most expensive new MacBook Pros in almost 15 years, I reconsidered my decision for the first time and, for the past few weeks, I’ve been back on a Windows PC. I ’ve been an Apple user for over a decade, ever since I picked up a refurbished 17in PowerBook back in 2005 to replace my ailing Windows XP box.