Upload & Sell: Off
MAP sets the lowest advertized price and how a retailer can tell you what the real selling price is. Nikon USA, Sony USA, Pentax USA have established unilateral prices which set the lowest selling price.
Regarding Canon prices -- MAP doesn't limit the selling price but it may limit how (or even if) we can show the selling price. Phone us (800.606.6969 / 212.444.6615) or email email@example.com. We may be able to accommodate you.
That's all nice and dandy (phoning in). But it defeats the purpose of on-line shopping. Today (or more precisely, last month), users, anywhere in the world, are able to browse to your web site, and check price they would pay. Unless you intend to prominently display "call for price", you are going to lose potential customers. Not everyone reads forums like this one.
Second issue are web sites that collect prices over web for comparative purposes. They will not show prices that reflect reality either. Of course, someone can say, it's better that way. But users got accustomed to such services before they spend money.