I have a little used Leupold VX III 4.5-14X AO 40mm with 1" tube that I want to sell. I paid $500 for it new and am wondering what to ask for it in it's current condition. It looks new. I have the original box. What would be a reasonable price to put on it? I looked on several sites and cannot find similar scopes. I'm thinking $400 would be fair. What do you all think out there?