I am mainly a coin collector, but the allure of high denomination notes has always had a hold on me. I purchased the big daddy recently, and am quite pleased with it for a VF. No major creases or problems of any kind. I need a nice VF $500 now, and I want to do an early FR small note basic type set of all the denominations(except the 5K and 10K which I could never afford). Does the "lime green" seal add any premium?