"Babysitter" is a big clue. No kids means no babysitter worries nor baby expense. I also noticed BMW racing and skiing among your profile interests, neither of which seem like budget hobbies. My other hobbies are relatively cheap and I drive a Nissan, so that way I can prioritize my diving. Sell the BMW and ski gear, give the kids up for adoption, and join usOnce every 2 to 3 years.
We try to do 1 dive trip per year, but we also like to go other places (Bonaire, Belize so far).
We are mostly babysitter and budget limited. Plenty of vacation time, but minimum cost for a week-long dive trip is $3k. Begs the question.... those that are doing 3+ trips per year.... trustfunders?