Not to steer this into a Windows-vs-Mac discussion, but I gave up on the garbage products that are being made by Microsoft. I'm no slouch with computers and have built most of the ones I have owned. Having been a Microsoft user since DOS 6.22, the frustrations with Microsoft products over declining reliability, increasing malware attacks, and re-learning where MS has moved common utilities along with re-learning new keystrokes has pushed me to the Mac world. My WIN2K system mysteriously ceased to recognize my CD drive, and HP no longer makes the ink cartridges for my printer which isn't even ten years old! We use WIN7 at work and Microsoft went the wrong direction with the new IE8 and Windows Explorer (I HATE the mouse-over features, VERY annoying).
Since upgrading would had required replacing my entire system, I opted for a Mac Pro. You pay more but you get what you pay for. It is more reliable than MS, HP, or Dell can ever dream. The learning curve to OSX was easier than I imagined and OSX is far more intuitive. I had been eyeing the Mac for ten years and purposely stayed away from Windows-centric file formats, thus when I jumped ship all of my file formats translated seamlessly. Apple has inexpensive word processor and spreadsheet software on iTunes that will import Word/Excel files with few compatibility problems. OSX is not immune to viruses but I have yet to suffer from an infection. I don't regret the move one iota. I have upgraded OSX from Lion to Mountain Lion to Mavericks without replacing any hardware or paying any 'apple tax'.