I just got off the phone with Mylaps, the AMBrc Personal Transponder people. They do not have whole sale pricing, so ... essentially that means that we wont be stocking AMB transponders. They charge everyone the same price:

Rc3 personals (direct powered)
$110 each
5+ $100 each
20+ $95 each

You are welcome to order AMB's from them or if you find a deal I'd say jump on it.
I have an order in with MRT over in the UK but it's going to take a bunch of weeks
for that stuff to arrive.In the mean time I'd say if you can't wait troll ebay :).

BTW I asked like 19 times and the lady said they do not do "dealer" anything all
 the prices are the same for everyone.