There is still a spritz or two left in the vintage Pactra Candy Pagan Gold can that I painted one of my favorite builds with, and that was prolly '76 when that happened.
Some AMT Lacquers that are even older (!) that I sprayed out when it was revealed that it could be buffed with toothpaste and lemon Pledge.
Way too many blown up 00's Testors cans - tossed at LEAST a hundred bucks worth before our move that had goobered out in the rack.
I'd have to give a good final look when reloading my booth area in the new space, but other than Tamiya, stuff you can buy today from anyone is in the definite minority.