Where there's a will there's a way!! There may be some tickets on e-bay - in fact I bet there would be.

Too old? - you would be surprised - I would say from age 8 to 80 (literally) that I saw there last evening. Anyway it does not matter how old you are at these things - its all part of the fun.
For two hours last night I was transported back to my younger, care-free days of 10+ years ago!! Give it a go, its fun for a short while!