Look at this site
http://www.2euroinks.com/They want an incentive to add PMC or pre-order
From e-mail "To be perfectly honest with you, most of the coins we have listed, had offered a bounty for accepting their coin. Now as PMC most likely can't offer that kind of incentive, maybe there's another way we could work together. One option which came to mind is that of getting some -pre-order interest in our website. For example, 20 PMC holders (in Europe) pledge to place an order with the website - and if there's interest, then we can look to accept PMC"
I think that we would skip this offer but I'd like to known your opinion.
Not worth it, to be honest. Not for a small retailer that deal in only one line of products.