Look at how fast games needed dual cores. Within the next few months we'll see more games like FFXIV which will use more of all four cores. Plus, that Phenom is old. It may be cheap, but in 6 months there are going to be all new procs out, and the $95 upgrade will turn into junk which just sits there. He also seems to have the money for an upgrade he does need eventually anyway, whether he gets it now, or in 6 months, there is always something new or better to outdate it. I always hear "Wait a few months, there's going to be new stuff and the price will drop", meanwhile, the person is waiting, playing games on turd mode with 640 x 480 resolution. Then the day finally arrives, the launch of new processors from... let us say Intel. These processors come at the low introductory price of $600, then people start saying "Well just wait a few more weeks, AMD is launching their new line", the OP waits 2 weeks, AMD processors launch and people are saying "Oh, wait a few months, Intels new offering is 2X as fast as AMD's latest".
Just get a new computer when you want/ need one. No matter when things are coming out there's always something twice as fast around the corner that's going to drop prices, but realistically it's all the same. We PC people always get the itch for the best, but the best now is always going to be the second best later, or the second best the third, ect.