I didn't go that far but did spend much more than I initially thought on my 5.1 system. I also dropped quite a bit on a brand new gaming computer after my last one was reaching on 5 years old. The computer investment was a no-brainer because I'm literally on it every day, the sound system one - while still being worth it to me - gets used maybe once a week at most.. No TV and only movies to watch means I went through the stack pretty quick. If there was better internet and could stream HD content, I'd be much more apt to using it more, but alas, we live in the country with a slow net and a data cap.
Marantz SR-5007 theater, Marantz 2325 stereo
Klipsch WF-35, WC-24, WB-14 theater, Klipsch Forte II stereo
Sony PS3, Xbox 360, Wii U