Over the years I have spend hundreds of pounds, actually probably closing in if not over a thousand. I would honestly be too scared to count up all of the ticket prices on shows both as touring versions coming to the North East and on many trips down to London for the West End shows.
With all of that though I also stumbled across something called “day seats” if you are not aware these are seats that are sold cheaper on the day of the show direct from the Theatre it is being performed at, usually opening at 10am.
Most day seats were kept in the front row, but that depends on Theatre/Show.