I know of 3 universities that have sold XP pro to students for $25. They were full copies with licenses. The were UK, WVU, and Marshall. I'm sure other colleges and universities do that.
For those people that become dealers, the last cost that I saw for their first purchase was $35. After the initial purchase, the price went up to the standard wholesale, and the dealer sells in at retail value.
For $35, I received XP Pro (full, licensed version), and it came in a presentation box containing an XP baseball bobble head, an XP baseball card, a baseball with XP in a sealed plastic presentation box, and a pouch of Big League Chew sour cherry bubblegum. It could be used for a client to help get more business. There's also monthly newsletters and other support information.