I've seen quite a bit of commentary that pricing for ancient coins is "in igne" - but I've seen other indications that the market is very soft. If one were to look at ancient coins as a market one can measure the bid/ask spread or look at sold coins to see how they fare in a subsequent auction. Most of us look at prior auction data when determining a value of a coin, but many other factors are involved like personal preference or scarcity. I'm amazed at Sestertius pricing as it can range from zero to thousands (real quick!) and some of that volatility appears to be independent of grade. For example in the prior CNG auction 478 lot 364 Tiberius CIVITATIBVS ASIAE RESTITVTIS sold for $300 plus fees. July 17, 2019 in Auction 448 lot 430 the same coin sold for $500 +18% fee. On the bright side, while most hobbies leave you with zero, at least this one you can walk away with 50%. One coin does not make a good sample but this coin looks great, I'm surprised it had this type of value change and does provide an indication of what one may expect if they perhaps rush a purchase and then sell in a short period of time for a coin that may be hovering between subjective grades.