Arable farm land. And I wouldn't have let my family sell any of it.
"Bests", I don't think, were ever "cheap"; the 50-80 guineas for one was out of range for one such as me on a teacher's wage. Inflation has done extraordinary things to our currencies! I'd spend up on a nice Greener perhaps, or have bought up those obsolete, unfashionable hammer guns, and "useless" muzzleloading Manton's that no one wanted anymore...
No I don't need a time machine - I've already got several. Every time I touch of a hand loaded black powder cartridge, roll crimped by hand with hand punched, wax lubed wads, shot and powder measured with a dipper, I'm transported back!
What should we be buying now? Probably arable farmland still.
RG