Just curious about others long term plans with their cMP, specifically those of you with the latest iteration, 5,1. Mine is a 2009 that I have updated a the processors in twice. I'm now going through the last significant upgrade of my machine having just put in x5690s and will probably do a PCIe SSD and some other improvements, but it's more or less getting to the point of being "maxed out." As I only need my computer for video editing mostly, I feel like It will be a capable and relevant machine for HD and 4K editing for the next few years, and perhaps longer if I don't experience hardware failures. I've owned it since it was new in 2009 and don't see a reason to switch to something else just yet. In fact the reason we bought these machines was due to their upgradeablity. I answered 2-4 years.