I may have already said this, but...
I kind of can't blame people that wind up with sub-par ARs. While the market has exploded, and largely caught up in terms of checking boxes on a chart, it is also lagging in terms of what would make for a readily-available, top shelf, updated, AR.
What I'd love to see is a Colt 6720 updated to include a mid-length gas system, MOE handguard and stock, and a 12.0 Lightweight, free-floated, handguard. This is something I could heartily recommend to a new buyer as being both reliable, functional, and fitting of modern utility (longer reach, bracing off of barricades, installation of a light, mounting of a two-point sling, etc.). I'm not even entirely sold on the mid-length and could skip that if necessary.