I have more than a few surplus fuel containers that currently go for some nice prices, selling a used can for 30 bucks and up really draws my attention. And some folks get a lot more than that for them.
Now I see a purpose for a few smallish cans of robust nature.
When looking at storing fuel here is how my thinking goes.
Need a couple to a few really good fuel cans. Lets mess around with saying 3 or 4 of the 5 gallon variety. Right now I would buy the brand new stuff from d optic and call it good for my lifespan if I care for them and they don't get run over or something odd like that.
Now I do wish to store more fuel than that.
I start looking at larger containers. From just going with drums to looking for tanks that go in pickup truck beds to just pulling some fuel tanks out of the vehicles in a junkyard, there are a lot of options for containers and as many options for moving that fuel around.
Options would vary depending on fuel type for me.
With the current prices I would be careful about paying much for anything needing work. You can weld up old cans, you can buy fuel tank liner for motorcycles and reline the cans, and you can get it working well with some new gaskets as well.
But the overall picture comes down to me either hunting stuff that needs work for 10 bucks and under or me paying for the new stuff where my time is not needed.
Then again I am close to adding a vehicle or 3 to my stable and if I want to haul fuel in them I kind of want to keep enough small size cans to allow each vehicle to have their own cans.
Kind of like rifles and magazines.
Heck, I even like the oddball 15 gallon dot certified trailer fuel tank tractor supply and other places are carrying with just a gravity feed fuel setup. For 100 bucks it allows me to quickly fill up at a gas station and for a weekend of riding on quads it will top off what my group does easily if everyone shows up with full fuel tanks. We stop a lot.