I don't think you can really compare football to bowling, cinema etc because cinemas and bowling alleys don't have as high a wage bill as Motherwell Football Club or any other SPL club for that matter.
Having said that I do believe that football is vastly over priced in Scotland. This isn't exclusive to the top division either because on the way home from work yesterday I was listening to the Real Radio Phone In and a Raith Rovers fan was on at one point and said that he pays £17 to get in to Starks Park . He also said he was charged £19 for the away end at Dens Park. I'm also sure I heard that Hibs are charging hearts fans £34 a ticket for the 2 January game. I hope I dreamt that because that is a disgraceful price if true.
I think a 4-5 quid for kids and £15 for adults is about fair.
Edit: the Hibs v Hearts game is £28+6 per order for special delivery which is where I got the £34. £28 is still far too much and why can't Hearts fans pick their tickets up at tynecastle if possible rather than spend £6 on SD ? Craziness.