My rig cost me about $2800 in 2011 but including all the peripherals. Nowadays I can't run most games on ultra or high settings which really bums me out but I sure as shit got my money's worth back in the day. I could achieve 70 solid frames on the BF1 beta, but any thing higher than Medium settings and I got anywhere from 25-40 fps.
My rig: Antec DF-35 (Stupidly overpriced and cramped) Gigabyte Z68x-UD3H-B3 (decent mobo) I5-2500k @ Stock clocks EVGA GTX 570 Reference card EVGA GTX 570 DoubleShot (OC'd from the factory) Kingston Hyper X DDR3 16 gigs Kingston Hyper X 128gb (Cost just under $400 :') Corsair HX750 PSU 2x WD Black 1TB drives (Not in a RAID Config) Noctua NH-C14 (This looked dope at the time, regrets were high)
Peripherals: Razer Deathadder Razer Lycosa (input cuts out at least once a day) 2x Asus 23.6" monitors (2ms response time, nice color with lots of inputs Razer Goliath Mouse Pad (Thing is like 4 feet long lol)
Overall it's a good PC but had I waited like another year my SSD would have been almost half the price but damn it was the best purchase I've ever made for my PC. Biggest regret is the Noctua CPU cooler since it cost $80 or $90 and it's way too large for a mid tower case like the DF-35 but I've never had CPU temps get too hot. My biggest issue is my GPU's reaching 90 degrees which I've never really been able to remedy. Switching their PCI rails helped though.
Pair this with the amount I've spent on steam games and I might start crying profusely