Good question here....and here's my thoughts....
I'm always buying-selling-trading high-end assault weapons. I typically buy a NIB assault weapon, put 500-1000rds thru it...spend hours in the shop dis-assembling/re-assembling/QC'ing...then trade it (at a loss) for the next "can't live without" weapon.
Can't explain why I do this, guess I'm an addict! But I do get to shoot a lot of different assault weapons AND one that I refuse to part with is the one that I find the best built, best fitting and most accurate assault rifle I've ever touched....the FS2000. Not knocking an Aug, but I MUCH prefer the FS.
Anyhow, just thoughts of a non-military "pleasure" shooter (fyi...whent the horde does come over the wall, I'm gonna walk past all the high-end crap I've got to get to my cheap-ass never-ever-fails AK!!!)