Almost everyone is MAP pricing now.
Used to be a few exclusive things that you'd find the same across the board, but these days it's everything. Even Aves had me sign a MAP agreement the last order I made with them. Aves, it's literally a tiny, family run business.
MAP is what Voyager did years back and it destroyed them. Instead of the up and coming company to rival Aber, it just fell into the middle of the pack.
Tamiya was always overpriced, there are very few kits I'd but outside of their 1/16 RC which horribly overpriced. You used to be able to buy from the home islands at a great discount, but they squashed that last year.
Even musical equipment is full MAP with everything. I used to be able to shop around, cut a deal. 48th Street in NYC was world famous for it. I just bought a Fender Jaguar last week, the only difference by shopping around was I could avoid tax, otherwise I would have bought direct from Fender. Sucks the fun out of it.
Pretty soon there won't be anywhere to buy but from Jeff Bezos.
Honestly, I don't see why any manufacturer would care. They're selling it wholesale based on volume.
Look at Saturn, that was their whole deal, 'you get the same price no matter where you go, any state, any dealer, no hassle.' It was all the rage until the public caught on that they were just overpaying for a crappy car. Where are they now?