but by the time it become unsupported, then new motherboard with newer feature will be out and you'll end up upgrading not only the CPU, but the entire kit...mobo/cpu/ram. So dont worry too much. ans it is easier to sell a complete kit than just a cpu, so you could be able to sell your old kit to a friend that want a computer and all he would need will be, storage devices, video card and other stuff for a minimal cost. That the way I do thing. I get the best for what I could afford now and dump everything later whend I upgrade.
-Always put the blame on you first, then on the hardware !!!