I saw the MAP thing developing in the 90's ( I work in another industry, but same rules etc). It is the seedy dealers that tend to sell the cheapest because their service is so bad price is the only thing that makes customers return. This can make a dealer that provide good service, education etc, drop a good product line because he doesn't want to mess with it on a 5% profit margin.
Good manufactures want the good full service dealers carrying their product so protect the line a little bit.
I might also add that I have observed the folks that complain about MAP pricing preventing them from getting good deals, turn around and also complain about illegal aliens undercutting them in the job market
And from another angle: dealers are making a couple bucks on each, But would you buy a case of 100 mags for $10each if you could make $2 each but it took 90 days to get them all sold? Can you afford to have that cash tied up for that long? Oh, wait, you don't like MAP, you can only make 50 cents on each, but can get it done is 60 days that way.
And for the original question. Call a few of you favorite dealers and ask for a deal on the phone. One might have an abundance and be glad to sell something today.