Several uncivilized answers sprang to mind first, but aside from those I think I'd collect factories and raw materials for manufacturing primers.

After a while I suppose I'd construct an evil lair in a volcano and see where things go from there.

Dust.

Property

Watches

-WWII era aircraft, ships & subs. I would place a special emphasis on having at least two PBY-5 Catalina aircraft as well as anything I could land on water and use to find isolated surfing and camping spots. I can’t think of many things cooler than having a PBY-5
-Vintage watches
-modern automatic mechanical watches
-Grand Prix racing Motorcycles
-vintage motorcycles
-modern motorcycles
-yes electric motorcycles too

Leicas and Lugers

American muscle cars with an emphasis on GTOs and Corvettes.

A bunch of land and every piece of equipment John Deere makes. Plus a fuel tanker too.

quote:

Originally posted by Mr.9mm:
American muscle cars with an emphasis on GTOs and Corvettes.

Much the same, but ALL of them. One of each of any muscle car from 1960 to 1970 or so.

And I'd DRIVE the sonsabitches. Fuck a bunch of letting them collect dust in a fancy garage somewhere.

The writings of American humorists from the Revolution to the present, bolt-action 7.62x39s, any kind of single-shot cartridge-firing rifles except break-opens, and motorcycles with triple-cylinder engines.

Vintage firearms 1875-1955. With emphasis on Colt SAAs and Thompsons. Cars. Land. And buy a small private plane to fly my ass to exotic locations.

Classic sports cars of the 1950's and 60's.
Starting with a Jaguar XK 120 alloy body.

Space would be the primary limiting factor....

Skill.

I’d stay in a full time training cycle. I’d take a couple of classes per month to supplement what I’m already doing. I’d spend the rest of the time teaching.

properties (from beachfront villas in multiple climactic zones to million-acre hunting preserves and everything in between)
several small countries (and maybe one or two big ones)
vehicles (hypercars and other exotics)
boats (yachts, power and sailing, my own personal nuclear-powered aircraft carriers and submarines)
planes, everything from WW1 bi-planes to 747s to F-22 Raptors, just so I could get from property to property in a timely manner
at least one Formula 1, NASCAR CUP, and GP sports car racing team

The supermodels would, of course, attach themselves. Funny how "unlimited resources" seems to encourage that.

I would go back to coins again and this time will assemble a complete collection of every US coin ever made at the highest possible available grades that will knock Louis E. Eliasberg's collection to second place.

Experiences, mostly.

The question should be: what wouldnt' I collect? I can't think of any except smelly under wears. I'll pass on those.

If I had serious FU money ?

Machine guns
Rare sports and muscle cars.
Watches ( rare Rolex, Patel Richard Mille etc

Twice I had the opportunity to tour a legit billionaires estate on the San Francisco peninsula who had a private tank museum. Several hundred pieces of tracked military vehicles from the earliest 1900s examples to 1970s pieces. From all armies of the world. It was pretty much the coolest privately curated thing ever. It has since been sold and spread to the wind.

Like most here, being a gun nut, I would own many many firearms.

Also video games, love RPGs but many take time I just don't have anymore..

Books, Bourbons, Watches, HK P7s, ASP 9mms and Porsche 911s. All a growing boy would ever would hope to own and pass on to his son.