I enjoyed the first two, keen to finish the trilogy off and see where the story goes, but theres no way I'm paying 50 quid for it. There is literally only maybe 2 or 3 titles that I would pay that for. Its not like I even get a nice box to put on the shelf or a nicely drawn hardcopy manual like back in the old days. Its definitely on my buy list currently but I'll be grabbing a key from Voidu or CdKeys or Kinguin.
I haven't seen any big games release for £30-35 on Steam in years, if ever. Even the new RE2 is £45, and you can get that on the consoles for £39 at Tesco etc.
Really not sure where you're getting this idea that they're greedy from, it seems an entirely normal price for the game from Steam.
I wouldn't pay £50 for it either, but I would find somewhere cheaper instead.
You can't use Steam much then!