I always say to people I know... did you check overclock? Aha, I love the savings. Plus most stuff PC wise is generally good for people .. like everyone on here who will upgrade later anyway.. I doubt they own anything long enough to kill it. In fact, most of the things I have brought 1st hand have been DOA or broke after a few months
My i7 rig in my sig / GTX 580's cost me about .. £800 Which is a pretty insane gaming PC for the price Asus Rampage III extreme + 930 + 6GB ram + 120gb SSD I picked up a lot less than it was worth .
Upsets me that people don't buy stuff second hand when there is some stuff you should (Water blocks / air coolers = My favorite example, what can go wrong with an air cooler? )