Same here...to look at it, there seems to be no real rules. I would love to participate, but the level of fitness required is more than I'm willing to undertake as I'm lazy when it comes to the gym. Not to mention getting the kit, flights, accomodations- a lot of guys are doing some sort of fund raising in order to be able to fund the trip. I help out if/when I can as I would love to go- but not that much.
Who knows, I'm 40 now and I've got a little something to prove. There's always next year. Great vid, thanks for sharing.