What is important to realize is that these reward cards GFL have about a 4 times lower point/DEC burn level than previous legendary cards. Therefore they are about 4 times less worth in value as well. Considering this, I think that present prices are slightly too high. A good idea in such cases is to go to peakmonsters and enter a bid price at let's say 200$. If somebody is willing to sell at this price then you make a good deal.