Sadly, there are a "few" of these folks that are also dealers. (Speaking just to the S. Florida Gun Shows, and local fodder)..
After my Frankenstein build, with an otherwise great POF billet lower, Colt Barrel, VLTOR this & Daniel Defense that, etc,.... I was suddenly spoken to in the most condescending tone, when I mentioned a spare Rock River BCG, and a Yankee Hills foregrip.
Like I was going to lay down $500 for a Knights Armament or Omega Rail...(oh and my Bushmaster stock trigger, was not a match grade, so it failed the "standard")...
I am sorry to think that someone who is not rich, and acquires a DPMS or Rock River/ Oly, CMMG, basic carbine, tweaks and improves it on a budget, encounters otherwise pro-gun folks that look down on their choice of brand or components.
My AR will also work like a club and still function and not damage anything.....I wonder if their EoTech/ACOG, big money AR can withstand even falling on the floor without breaking or knocking something out of zero.
Mine isn't a "show car"....it's a work truck.