LLoyd; you are comparing technology advances "across the board" with the quality of one product to it's competitors. GM vs it's competitors today, is not the same as GM vs it's competitors years ago. At one time, a GM and Ford was the standard by which the world bought automobiles. Today, GM is no longer at the top of quality vs it's competition. Yes, technology advances has made a 2010 gm a better car than a 1970; but not in relationship to it's competitors.
As for Bushmasters, the same applies. Technology, better materials, etc... have made weapons manufacturing better today. But Bushmaster is in no way one of the AR15 leaders that it use to be. It is the most picky when it comes to ammo. It has common loading issues. Extractor issues. Most people need to add a heavier buffer to slow down the cycling. Point is; the bushmaster is no where near the level of quality, vs it's competitors, that it use to be. But they live off of their name and charge way too much money for one.
I find it amazing how some people will say that they bought a Bush, Rock River, DPMS, and some others because they are on a budget and can't afford one of the "BETTER ONES". It's obvious that these people were impatient and/or ignorant, and simply don't want to admit that they didn't do any shopping around. Head to head, at the same source, a Colt will cost more than a bush or DPMS, but money doesn't have to be spent head to head. Money is finite for most people and their budgets. Saying you had to get a bush or RR because that's what you could afford, only applies because you bought it local.
On the retail market, bushmaster is way overpriced. If you're paying more than $750-$800 for a bushmaster, Rock, or DPMS, you are being ripped off. But most AR buyers are ignorant and impatient. They don't shop around and buy the first they can find. But a Bushmaster is NOT the same quality that it once was.
I'm not saying that buying a Bushmaster is a total mistake. I personally wouldn't buy one, but all of it's issues can be resolved for very little money. My thing is that Bushmasters aren't worth $1000, when you can get a colt, Daniel, BCM, etc... for the same price or LESS. Al Gore invented the internet. There's no reason to spend $1000 on a bushmaster at your local gun shop when you can buy one for $750; or if you are really willing to spend $1000, you can buy a much higher quality AR for the same price you were going to spend.