I was reading article on czech gaming server this week, with which i would mostly agree.
One indie developer expresses his feelings about selling games on Steam.
At first his team thought it would be good, because lots of cost would be saved on the way dev->distributor->retail company->gaming shop->end customer, but after some time they found out, that most of the sales comes from actions, like Midweek Madness, Christmas, Easter etc. and get there was very difficult, Valve selects games in their free will, without any explanations they can say no.
In the end they decided to pull out of Steam, it wasn't worth it, because they had to pay some money from the sale to Valve too and while their games were good, people mostly buy only things, which they see on the main page or in the Steam-launch-popup, active searching isn't done too often.
What this would mean for devs -> either they would sell it for the same price, but got less money, or bigger price to keep the income on the same level. Also paying to Valve wouldn't help much imo.
I'm not saying no to this, because anything, that can keep them financially secured and (hopefully) keep developing, would be good, but at this point it's waste of resources. Maybe when S3 comes out...
And also Steam kiddies...