Well take the sks for an example, many people stick 2-3 time of its value into customizing it and to them its worth. personally i feel that way about my svt 40 the is just nothing on the market for them, maybe repro stocks wouldn't be worth my time but maybe custom design ones would sell better, l'd buy accressories for it if they were available, I believe the svt 40 and sks are worth more then they sell for thanks to excessive market supply. Take the Enfield for an instance they used to be a dime a dozen buy now they are worth a lot since the surplus ran out, one day the Russian surplus will also dry up