The following comment is based on what I read at TSS and Retro: I think people need to resign themselves to the fact that any SEGA title hitting PSN/XBLA that is new will be $15 and any title that is a Dreamcast or 3D Arcade rerelease will be $10. Anything else, mostly Genesis titles and DLC, will be $3-$7. That seems to be the norm. I'm not going to bitch at SEGA for doing what they have been doing for a good couple of years already. In six months time, Sonic 4 could be bumped down to $10 for a sale, but in the meantime I'm completely fine with the price. However if the iPhone version is more then $10, I'll complain. As for the Wii version, while I don't have a Wii, I think it is overpriced in the sense that it isn't in HD yet is the same price as the HD consoles.
If there is a digital release SEGA title that I do have a price beef with, it would be Virtual-On OT which is still selling for the release price of $15. That sucker should be bumped down to $10 to join OutRun Online and After Burner Climax.