Or my favourite materials driven sport, F5B electric gliders (aeromodelling). I don't know how many speed controllers at $600 a pop I have burnt, and motors at $500. The battery packs at $300 were competitive for about 20 starts, then they had to be downgraded for training. A new mold when I came up with something new for wings or fuselage were about $1000 each. A prop. mold took about a week to make and cost $200-300. The lay-ups and radio hardware were quite cheap in comparison. Not as expensive as sailboats, but...
Haha... point is, there are lots of ways to blow through one's disposible (and sometimes not so disposible) income.
I could go on about the hundreds thousands of dollars we've spent on orchids and supplies persuing that passion. Sailboats, as I'm sure you know, are just another term for black hole. And so is photography. The main difference is that photography, like most hobbies, eats your money a little bit at a time whereas a sailboat pretty much takes it all at once.
The main thing is the enjoyment it gives you.
--Ron