I mean this in the truest of all sincerity.
Why do you want one?
If it is for psychic income, I can say the effect is fleeting.
You can enjoy the gunmaker's art, and the admiration of friends and acquaintances, without purchasing a London Best.
Blame Michael McIntosh.
He wrote about those dad blasted "best guns" until it flung a craving on me.
Besides, I'd get to take it all apart with my "turnscrews" and admire the innards, and think about how it was supposed to take a thousand man hours of labor to make it.
It doesn't have to be a London best.
A Birmingham gun, might scratch the itch, or a best gun from some other place.
I own a pair of J.C. Higgins Model 100 AyA guns, and a nice BSS, which has successfully warded off coveting a Model 21 Winchester.
But the V. Bernardelli Bladeswitcher sold me, just inflamed my desire for a sidelock best gun.