As Mark posted awhile back, about companies requiring a certain sales level to do business. This is nothing new. I can relate to it from a different hobby, that being model trains. I had a good freind of mine who opened up a hobby shop in the early 80's. It was trains exclusively, the idea being that he would corner the market in our area. And for a couple years he did very well indeed. There were a couple of hobby shops within say, a 30 mile radius of his, but they sold everything. Radio control planes, slot car kits, plastic model kits and all the tools & supplies to build 'em. The problem that he had (according to him) was mail order dealers. Even with shipping, he got beat on price for the bigger ticket items. And everyone dealt with the same two or three wholesale catalog dealers.
The story is that he wanted me to become a business partner after a few years. What happened was that he shot himself in the foot. I am so happy that I declined his offer. During the economic downturn in the late 80's he decided to try selling 'big dollar trains' in an effort to turn a better profit. These being Lionel & the then newer LGB trains. A simple set could cost someone 2-400 bucks. Right before the Christmas season in 1987, he bought a couple grand worth of these larger scale trains. Through January, he sold 2 Lionel sets and found no buyers for the LGB stuff he had.
Right around then, he put a shingle up on the store saying he was going out of business. His main wholesaler had just made a new policy. To order from them and get the normal discount, dealers would need to pay in advance and raise their sales a minimum of 12% a year.... meaning 1% a month to keep their discount. Anything less meant the discount was up for review, and that was every quarter at first. I remember once it took me 6 months to get a simple $50 order fulfilled. After that I stopped doing catalog orders. His going out of business sale lasted for 2 years.