I play as a whipper, and don't even have a sentinel, but I've gotta say that your price isn't good at all for the weapon. It's not refined at all, and though it does have good stats...its certainly not worth as much as a bike....or as much as a highly refined +7, and up piece of gear. You should be able to make a good sale off of this, but your asking price is ridiculous to be honest. (Not trying to be rude by saying this, but it is true.) Some refined +3 bikes are cheaper than your unrefined weapon. Lingerie unsealers and skill resetters combined are cheaper, and some +7 weapons and armor pieces are cheaper...so to be completely honest....you need to reevaluate your sales price here, or you're VERY UNLIKELY to make a sale.