Weather has killed it for me this year, although did MM & entered for Sleepless. Hated Mayhem (1st time I’ve ever thought that since my 1st in ’02)
The likes of MM & Sleepless are getting a big stagnated, same format, same courses, same (often poor) facilities will only attract people for so long.
There are more endure/endurance events in the calendar than there ever used to be, diluting the same number of competitors between them
I also now to go abroad to do a Sportive or two, better weather (usually) better value (IMO) bigger entrance, better organisation.