There are hundreds of thousands of men who will think nothing of spending this much money on this event. These are your proper “Alpha” male types who will fall into broadly
1. self made business cows who are so full of their own BS that they’ll sign up and brag to their mates, who in the back of that, will sign up as “everything” in their lives is a competition.
2. The endless self promotors and influencers who will get their Patreon and crowdfunders to help them get to the entry fee
3. bored millionaires looking for something to do, very similar to group 1 but probably retired.
I reckon that you could fill the entry list 3 times over with no worries. Especially now it’s been on BBC the folk that do get in will be so smug about it to their friends, I’ll bet you could probably fill the next years entry list of the back of it