I've just upgraded from Mac OS X Snow Leopard to Mountain Lion. And while that alone isn't worth discussing, a point it has demonstrated is. Some things are even shiner, the scrolling has switched directions (which I'll just have to get used to), and I've noticed a big improvement in performance (now, now, don't be so dirty-minded). But here's the rub: Certain programs like my ancient version of Office (occasionally I do require it) no longer work as Power PC blah blah no longer supported. Now, I can use other things besides Office, no problem there. VMWare Fusion is now out of commission too though. So, yes. To the point of the topic. Everything is built and designed to become useless and need replacing later on down the line. Discuss.