Without competition there is no 'best terms', just; 'terms', like them, or not.
Which by definition would then be the best terms, (and also the worst), and it would be up to me as to whether to stick to buying from a reseller, joining a group buy or looking for a different product. There's still competition. If a manufacturer/reseller price themselves out of the market it's because there are still alternatives. I'm not about to cut off my nose to spite my face and steadfastly refuse to buy from anyone but a high-priced reseller, but if I deem the terms to be reasonable, even if they are the only terms available, then I'll buy.
There's value in offering people what they want, but it's not infinite.