Well I'm sure they could have doe it cheaper for say £25, oh hang on a couple of others have done that and it was crap!
Tehy have to pay the staff and we all know if you want your staff to be happy and do a good job you need to pay them well, it is proper log cabins not B&Q sheds, apparently it takes 3 months to put up and take down, I've been to Alton Towers and Chessington - the food is shit and far more expensive than £6. It may be out of season for those theme parks,but I think that this is probably high season for a christmas themed event! Rental of the park, all the scenery, lights, snow, snow machine, insurance, health and safety stuff and where do you manager to go ice skating for less than £5 for an unlimited time - not somehwere where childrn think they have elves helping them after they've just met FC. All the fab costumes, the gift, I suppose you could make that optional but your children might be a bot upset to see some kids walking around with a present that they weren't able to get. The reindeer, huskies and handlers - should I go on?
Mummy Christmas have a great time, as an adult you have to suspend your disbelief a bit but as long as you enter into the spirit of you you will have as good a time as your children.
Mamamea - have a fab time in Eygpt, I'm sure you will also have a great time