So many hobbies to obsess over, so little time....
For me, hobbies (other than the audiophile stuff) include my classic car (1955 Jaguar XK140 OTS), fitness, target shooting, and photography.
The Jag was a labor of love. It belonged to my Uncle and I have lusted after it since childhood. It was a complete rust bucket by the time I came into possession of it. I had it fully-restored which took an inordinately long time and cost way too much. The 3.8 L engine (not original) was bored out to 5.0 L, replaced the stock carbs with triple 50 DCOE Webers, drum brakes converted to disc brakes, four speed converted to five speed, electronic ignition, racing bucket seats, and numerous other upgrades. It is a beauty and a beast.
As for the fitness gear, I have built my own home gym in my basement. I work out six days a week and have collected a ton of nice gear. Barbells, kettle bells, Dumbbells, squat rack, treadmill, and tons of other stuff. I have a little boxing room where I have three speed bag platforms (each with a different type of swivel) and about 15 different speed bags I switch between (did someone mention obsessive?), along with a couple of heavy bags. And I can guarantee my gym has the nicest sound system of any gym in the city (ML Ascents driven by Pass Labs X350.5).
Then there's target shooting. I have a few dozen guns, a couple of suppressors, bunches of steel and paper targets, bench rest, thousands of rounds of ammo, etc. I mostly shoot .22 because it's cheap and relatively quiet. I like 50 and 100 yards with paper targets. I have shot a little cowboy action and rimfire competition matches, but I don't care that much for competition shooting. Prefer to sit on my own property and shoot with friends. I have a hundred yard range with a nice berm for a backdrop. I have a few .22 rifles that will consistently shoot half inch or smaller groups at 50 yards, which is good enough for me. My favorite is a Kidd rifle I put together. It's basically a Ruger 10/22 design but built with all high-end aftermarket parts. Extremely accurate for a semi-auto .22.
But without a doubt, my true longstanding obsession is photography and photographic gear. I must have a dozen or more cameras and several dozen lenses. Mostly Canon, Zeiss and Leica. Lately, I have been focusing (pun intended) on vintage Leica lenses. I just picked up a 85mm f/1.5 Summarex from the early fifties. Fairly rare and highly sought after portrait lens. Arriving today is a 50mm f/1.5 Summarit, also from the early fifties. My oldest is a 50mm f/2 Summar. It's about 80 years old. I have the Leica digital M9 camera and have the new M10 on order. I also have a collection of Zeiss manual focus lenses for my Canon 5dMk3. Cameras come and go, but nice lenses last forever.
Here's a picture of the Jag and a picture of my Kidd rifle: