As a current owner of everthing from Q9650, i7 920, 960, 980X, 4770K, 6700K, 6850K, 7800X I can say that an i7 920 is still a great 1080p gaming rig paired with an R9 290X, R9 Nano, R9 Fury, RX470, GTX 1060, 980Ti, 1070Ti for 99.9% of AAA demanding games with no truly tangible frame drops of consistent nature. Sure, the last 2 AC games due to unsupported instructions run at more of console experience, but playing Division 1/2, GRW, FC5, R6 Siege, EA lame Battlefront II, Shadow of War, Hitman 2 etc. no complaints, and there definitely wouldn't be from a budget gamer's perspective because they're fine with bacon instead of caviar.
I use X58 systems regularly for lan parties for games such as Division 1/2, GRW, Vermintide 2, Payday 2, in addition to gems like ETQW. No complaints all around. How many X58 systems are you using on a recurring basis?