ping
Don’t know about the hunting but we have had several Berettas that ran 30-40K in the gun corral at our fall Turkey Shoot for the Boy Scouts. The older the boys the more expensive their toys applies. Their are usually some family heirlooms present as well. The camp uses Berettas but they are the plain black ones the expensive ones are usually expensive because of their artistic beauty.
That said, the most expensive weapon I own is a genuine, full auto H&K MP5SD3. It set me back over $10K about 5 yrs ago, now I see them being sold for almost twice that. If a $370K gun is considered a "house gun", I guess you consider mine a "used car gun."
My most expensive gun is a DU limited edition Browning O/U in 20 gauge. I have no idea how much it cost because I won it in a raffle. I doubt it even approaches these so maybe it’s a “tar paper shack” gun.
I'll simply describe my best as 'Bob Villa specials'...
Ecept for great grandpappys ole single 12 guage, no money will buy that...
Even the screws are engraved.
I can understand how a $300K sportscar would out perform my Silverado, but I can’t understand how a high priced shotgun can perform any better or different than my field gun.
My guns aren’t cheap, but they all see work.

Mine's due in September, the scope in January, if my buddy can score a couple of Schmidt u Benders at the SHOT show.
To me, 'House Gun' is the carry gun is currently sitting on the night stand, or the shotgun hiding behind the cabinet, or the 'Ugly Stick' (Hi-Point 9mm Carbine) in the basement.
$370K for a gun! Wow. I am such a bottom-feeder. ;)
The new price of the semi automatic FG42 is $10,000.00 plus 10% federal excise tax plus shipping and insurance to the buyers FFL holder.
I've always thought that custom engraving was more fitting on handguns, though I've never owned one meself. The closest I've ever come, or care to come again, is the nice look of a Renaissance Browning Hi-Power.

Wish I had such a collection. I keep a basic Remington Express 12 Gauge within reach at all times at my place. Still deciding whether I should switch to 00 shot over the 1 shot I keep handy.
The most expensive firearm I think I ever held was an original Henry. Looked like crap when the owner handed it to me, and told me NOT to drop it. (I had already handled a pristine looking one and no such warning was given.) I sorta gave him a funny look; he stated that it was used at the battle of the Little Big Horn - by the winning side! Which explained why it looked like crap. I mean the crap part was all the decorations on it, most of which appeared to be upholstery tacks.