also these touring shows are between £30 to 40 so not west end prices. its only the big west end shows that are in the £50 bracket. and even that is lower than west end where top price is now as good as £70. plus you save all the extras that a trip to london costs.
Very very few shows sell out
Shows return in the main because there is a shortage of shows, hence the 'road' problem in America
Your assumption of an audiences 'enjoyment' is based on you visiting one performance every week? many on the south coast if I remember rightly, - its v different in other areas of the country and I don't see how that allows a general assumption that the majority of people are enjoying them
DD is charging tops of £70 in lots of touring theatres - trust me you wouldn't want to be producing shows either side of DD as audiences can't afford then to see as many shows as they could - there is only so much money to go round- and that's getting less