What software uses 6/12? Most software developers still only uses 4 cores...
Except all compressors, be it general purpose or audio/video. Image editos also all use as many cores as they can utilize. Granted, if you odn't use any of that enough, who cares. But long term, if you buy a 6c/12t system now, it'll last for ages, 5 years easily especially if you overclock it. I mean, just look at Nehalems, the first 4c/8t CPU's. People still run them for very demanding stuff. Granted, they need to be overclocked to at least 4GHz now, but then they aren't much slower than modern 400€ CPU's. And those are freaking 6 years old.