I have a mid 2010 15" i5 MBP which is my first apple computer. I actually bought it a few months later as a refurb and was hoping, based on the high prices that older macs go for on eBay and the image I had of apple, that it would last a while before I felt the need to upgrade. I actually waited for the i5 to come out because I thought this would also increase the longevity. Since upgrading to OS X Lion the graphics performance has been pretty appalling. It seems due to apple's stranglehold on all drivers including graphics I can do nothing about this except hope they are kind enough to sort it out in Mountain Lion, although the general view on here seems to be that as my laptop is two years old I should expect pretty much no improvement and think about upgrading. I also own an iPad 2 and iPhone 3GS, both of which are showing signs of slowing, the latter pretty chronically as it is 3 years old. Did apple products always used to be crippled so quickly by new OSs? It seems the one worst side effect of Apple's closed system, and not one which is widely acknowledged. On a windows or android device I could rely on decent drivers from manufacturers, Windows 7 performs excellently on a 6 year old laptop and there are custom ROMs available for android to squeeze out decent performance from fairly low spec phones.