Nike Dunk Low varsity red black (2010) no box rare collection shoes

Nike dunk low varsity red black (2010) no box Size 10 men Buy in 2010 on the day of their release, use well but still in very good condition for their age. I also legit checked them often by an applications. I recently saw a pair like this in less good condition sell at $800 so I try my luck at $500 but I'm ready to negotiate for a good price