NOT a plug for Sears, but to have even them offer a $4000 PC is pretty much in-line with their other offerings. Since, I'm pretty sure they'll next to the washers and dryers(appliance center) of the store. Here, you'll see what it takes to make a $4000 PC. Just check the specs as plain as they are. And yes, it's a gamer's PC.
Do you know what an OLED TV is?
CNET explains how OLED technology differs from regular TVs, and what you need to know to make the right shopping decision.