As an IT guy, I have lost count of the number of times I have helped out friends and family when their computers became horribly slow. 99% of the time it's because they upgraded the OS and applications over the years until the RAM can't deal with it, so their machine was page faulting and had slowed to a crawl. Simple and cheap fix - I would go and buy some cheap RAM from the local IT shop, install it in 5 minutes, and boom, their machine is running like new. But for 5 years now Apple has killed this off, entirely and purely for greed and profit, thus rendering all such machines doomed to an early, unnecessary, and environmentally wasteful death. And to cap it off, Apple charge 4x the market retail rate to pre-upgrade RAM when you buy the machine. Which is even worse when you consider that 3 or 4 years down the track when you actually need to upgrade the RAM, the prices have halved, so in effect, the Apple tax on RAM is 8x. Pure disgusting greed, and environmental sabotage.