They compete solely on price. They are at a disadvantage in every other way!
We are not FBA seller and are currently feature merchant in wide range of products. So you don’t need to have FBA to be a featured merchant or get Buy Box.
We did not say that you have to be FBA as a Seller with all your items or many of
your items to become
When they Promoted SI Pro Merchant accounts in the autumn of 2009 many of
us did not have a single item in FBA yet we became Featured Merchants.
What we said was that even if they are not Featured Merchants for whatever
reason, as soon as they send in an item to FBA that item is listed among the
Featured Merchant Listings.
Another way to promote FBA.