I would just wait it out until it is time to buy another replacement system. SSD prices are still kind of expensive and since it is already a used product, I don't see you gaining much since you'll replace your computer every so many years.

I would sell it and get a new one, at least retain as much residual value before it becomes unsellable. The new processor computer are coming out and the benefits of the new computer w/SSD is probably worth the expense.

don't forget to remove all of the bloatware, that can speed up a WIndows box and free up some storage if you haven't already done that.

565, 562V, 518, DSP5500, DSP5000C, Misc analog for rear channels, Talon 12 in sub