A throwaway remark on another thread has got me wondering... someone said that old Randall sheaths seem to be worth more than the actual knives.... Well, the sheath for one of my Randalls (a Model 5) has the little snap-down knife retention strap become badly stretched, so the knife is now in constant danger of falling out. The sheath is about 30 years old and was beautifully made, and I've always hated the idea of breaking the glue and doing some crude restitching to fix the problem- in fact I've been using a leather thong to tie the knife in, meaning it is no longer quick draw accessible. My plan has been to take the sheath to a shoemaker and get it fixed professionally, but now that I know the sheaths are valuable maybe that's a bad idea? Would it be like repainting an antique table and would that ruin any collector value? I mean, I want to hand my knives down, and decades from now don't want to be the dumb old guy who wrecked the heirloom stuff.