^^^ Exactly. The socket 2011 offers pretty good performance, and there is an I7 4820k for 304 dollars that is a good buy, but the motherboards are north of 200 dollars for a decent one. Plus you'd need to buy 4 * xxxgb sticks for best performance from your Ram.
However, the "plain" 4770 I7 won't bottleneck pretty much any graphics solution out right now. Maybe quad-Titans, but if you have 4k to drop on graphics cards, you aren't running with a 320 dollar Cpu.