The DM in question does ok with the AoO rule, but that said, the AoO was always part of our home rules in 1e.
Some more from the FLGS perspective:
1. My most frequent buyer of D&D minis is a gentleman who DMs a 1E campaign. He and his group play lots of RPGs, but when it comes to D&D they've stuck with 1E. They like the iconic value of having trolls that look like the trolls from the 1E illustrations.
2. Most of the D&D players who frequent the store tend to use non-WotC, specifcally Reaper, minis for their PCs. The DMs who use minis tend to use the WotC D&D minis for their NPCs and monsters.
3. If anything, the D&D minis line draws people to the RPG as much as the reverse. I've had Mageknight and Warhammer players see other customers playing the D&D minis game in the store then buy the D&D minis game. Several have gone on to buy the 3 D&D core rule books and get into RPGing.
Yes, I know the above may not be representative of gamers overall and is just the reality of my customer base right now.
I think possibly my perspective is skewed by the fact that I've always used minis when playing D&D from OD&D through 3.5e. Personally, I really like that the D&D RPG now incorporates rules for using the tactical maps and figures. Just seemed like a natural progression of the game to me. Just as we had an AoO rule in 1979 and used minis then too.
Thanks,
Rich