I also like Nagants as collector's items more than to shoot. Around here, a box of gas-seal ammo costs about half the price of the gun, when it can be found at all.
The problem, for me, is that I passed up several chances to buy Nagants, before finally realizing how interesting they are. By the time I warmed up to them, they were about gone from the local gunshop. I bought a 1944 Izhevsk because it was the last one, even though its condition is poor compared with others that I could have gotten, but did not. I asked the dealer if he could order more. He tried, but found that the wholesaler had just run out. Nothing beats hindsight for clarity.