My life-passions have seemed to run in phases. The really serious ones are the ones I come back to after dormant periods.
Shooting; sporadic, but life long and all consuming when in season. No local range any longer where I live, but more paraphanalia than I can possibly use.
Bikes, speed; got back into bikes after a 25 year layout. Ended up racing before I was done. Now RACING is an activity that can suck you dry. There's a question newbies ask: "How much does it cost to race?" The answer is "It costs whatever you have." Contributed my share, both in cash, crash and broken body parts (not the bike's body parts either). @ 50+, healing time becomes noticably longer than track time. Out of racing now but just dormant on riding.
Sailing - I read all the Patrick O'Brian novels about CPT Aubry and fell in love with sailing... I thought. Actually I found that I hate sailing. I just liked outfitting the boats (= money pits). Took me numerous $K's to realize this though. Glad that one's over and never again.
Re-enacting, 1730's - 50's coloinal Georgia. Clothing, guns, tools, camping gear, odds and ends. Dormant.
Each of these activities seem to offer entire garage capacities of "necessities" that must be bought. I just consider myself lucky that I've never had any of them double-up on me and I'm not currently in a "being consumed" state.
I'd like to think that I'm mature enough now that I'm no longer suceptible to these passions..... right.