I've only bought one "new" as in new in the box unfired in the last decade. Got one (a discontinued model, but still NIB) the decade before. And I currently have several dozen handguns.
Where are you going to find a new Luger, or Broomhandle Mauser? Where are you going to find a new WAa pruf P.38 or Mauser HSc?
Where are you going to find a new Webley MK VI or ,a Colt agent?
Where are you going to find a new Auto Mag or LAR Grizzly?
Where are you going to find a new Savage 1910, or even a Ruger Vaquero (Not the NEW Vaquero)?
Where are the new pinned and recessed S&W magnums? (rumor has it the lock is finally going away in the future...)
IF all you are into is a single personal gun, and new ones appeal to you, go for it. But if you are interested in more than that, ignoring the used market just doesn't do away with half the good guns, it does away with most of them!
Everybody always tells about the lemons they got used, and truth be told, I gotten a few myself, over the years, but generally I know what I'm looking at, and I reached the point where I'm seldom wrong (about guns, anway
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If its a model I'm interested in, I'll buy a good condition used gun before I will buy a brand new one! And most of what I'm interested in is only found used.
I like guns with ...character.... better than cookie cutter new ones, so long as they are mechanically good, its a win/win for me.