Yesterday Silkroad raised the price for seller accounts from 12 to 37 BTC.
Looks like there is room for competition.
How much does an BMR seller account cost??
I also think it is a good step, filtering the real from the scammer..
*cough*
BTC0.00000000
SR's better for buyers, but BMR's better for new sellers.
You're half right.
For a level 1 seller in BMR
Level 1 activation has a cost of 1 bitcoin, at least that sum has to be deposited to your account in order for you to be activated as seller.
For level 2, I don't think they charge.
[Edit]. Correction for both Level 1 and Level 2 seller account on BMR your account must first have a 1BTC deposit for an "activation fee".