I really think it's quite simple. If you're not happy with the prices or ticketing structure then don't go.

They can get away with charging it, so they do. Why shouldn't they? Because they've made a shedload of money, should they just decide, you know what, let's just let everyone in for £25 or whatever?

I don't get why people continually complain about the prices. I'd like to drive a BMW X6, but I can't justify spending the money on it, so I don't. I don't moan about BMW and say they should charge a lot less for it because I've driven a BMW for 15 years and been a loyal customer.

Either pay the money and go, or don't.