That still makes no sense, Brentos. Take Paizo, for example. If they sell Pathfinder and the Gamemastery novels to other retailers, and get X amount from them (a set cost charged to all retailers), they make the profit they budgeted for. If they then sell Pathfinder or Gamemastery novels on their own site, at full price (X + Y), any they sell there, they get all the money.
Now, maybe there are companies who never want to be happy with X, but that's more of an argument with the retail model as it exists in the country, and can be solved, in the Age of the Internet, by just selling directly from their own site only, but limiting their exposure in others' stores.
After this decision, if they want to force everyone to sell at X + Y, and not at a discount (X + Y - Z), all they're really accomplishing is that a lot of retailers (who use the discounts as a way to get people in the virtual door) like RPGShop or Amazon will just say "nah, call us when you come to your senses" and they'll be back to just selling their products on their own site with the same visibility problems.
This is the farmers killing the goose that laid the golden eggs because they wanted ALL the gold all at once, instead of having the foresight to see that a steady stream of a smaller amount would net them more in the long run.
In other words, any producer stupid enough to do this is almost too stupid to deal with anyway, and has probably got a history of thunderous stupidity.
. I do have an entirely non-D&D blog on (god forbid) MySpace. For all things non-D&D (bad words, politics, religion included): 
