I am cheap and crazy enough to fin out to Klein, but on my first trip to Bonaire I actually did one two-tank boat trip to Klein ... and that was enough for me. Checking in for the boat dive at Captain Don’s was a waste of an hour, the divers on the boat were mostly newbies, the two indifferent divemasters had 8-10 divers each and spent the whole time checking everyone’s air, and the dive sites themselves, while certainly nice, where not particularly memorable. Oh, and my wife and I spent something like $150 for that outing. We both agreed afterwards that we should have just dived 1,000 Steps and Karpata (or Captain Don’s house reef, for that matter) and spent the $150 on a fabulous dinner.
Mind you, my 53-year-old knees are pre-titanium. Knock on wood.