Maybe I should not start with an article that is essentially something Valve cooked up for the press (even if it is quite true), but here it is, in a HTML link, for those of you who want to get the story behind the motivation for this thread quickly.
I am going to say it here: a lot of the virtual items in the Mann Co. Store seem to be outrageously priced to me - but 25% (supposedly) of that goes to the pockets of the contributor.
I know of some Valve supporters who would be happy to point out that Valve doesn't pocket everything of what customers give it with the above statement of revenue-sharing, and who have no qualms about purchasing gameplay-affecting items whose models were made by contributors.
(You can always go to the Steam Workshop page of "Accepted" models and see the supposed promises of some Steam forum users to buy these items in the Mann Co. store. I doubt that many of these promises are kept, but I don't doubt that some are fulfilled too though.)
Personally, I am not one to consider the breakdown of where the money goes when I make a purchase of something, so I am ambivalent about this revenue-sharing matter.
I ... am also hesitant if there's a near-naked atlas of a man hawking stuff to me and appealing to my thirst for bloody vengeance.
I don't know about you though. What do you think?