Strangest ? i would say healthiest ! it means people are really starting to collect for what the cards where intended for : the art and the collect them all. To me it seems that is the sign of a new step in the hobby’s maturation that people do not mindlessly chase for only charizard anymore.
Like this card:
it’s super expensive now. it’s just a common right, but fukuyama’s art makes it one of the best psyduck. People being able to recognize something is awesome means a healthy and maturing hobby to me. Premiums on certain less popular pokemons, on certain artist, on weird or unique art = super healthy. The hobby was certainly not more interesting when it consisted of only going for the chase of the set and or pikachu/charizard.