I don’t have that total in my 30-1 and two 31-1 revolvers. None of mine were NIB, or even had a box. They have gone up in price in my area since I got a snubbie 31-2 from a forum member five or six years ago. .32’s are addictive and will lead to more.
99% with box and papers go for that on GB. Insane prices are also due to bidding gamesmanship by inexperienced newbies and some of the guns are nothing but shooters but they don't know the difference.
There is also an opportunity cost issue. Some fairly rare guns you see seem a bit over priced. But when you walk away, you may not see another example come up for sale for several years and by then the price may be higher than the one you passed up earlier.
I'd say if you want it, and have the money then buy it.