I wouldn't say crazy, just normal now. Console games have always been more expensive for as long as I can remember.
Yeah, it does sound about right. Usually you pay around £15 more for the PS3/Xbox360 version of a game compared to the PC version. I guess it's to be expected when companies typically sell the console hardware at cost, or a loss, then recoup the money on game sales so it's likely this price disparity will always exist.