I'm sure others can give a better definition but I'll try. Basically, a Prime Membership gets better prices on a large amount of items, certain sales are cheaper. You get a freebie once a month from a real vendor, your own Prime Membership forum and other things. It's like the platinum club at DAZ. Very advantageous for a consumer. Shoot, if Renderotica had one, I might get a better wedding tackle (I do have the unitool) and real skin for M4 and perhaps other things. I always reup my prime membership just before the big Christmas sales so I can keep my reputation as the cheapest man alive.

Only another Vendor can tell you if it's good or bad for them.