Are the cards/mechanics/themes fun
I was offered $30 for RDR2 8 days after it came out and my 100k reward points I had saved up for years were not restored when my auto renew membership was turned off from an update despite being a member for 15 years
But a full release every three months lines up with the proper Pokmon TCG schedule and standard card game practice in general
Copies of Mulcharmy Purulia dropped significantly in price during the lead-up to Purulias reprints in Maze of the Master, but Purulia appears to have been harder to pull from MoM than sellers anticipated, because it rebounded just a month after the set dropped
However, the type of core the cards have is often relevant as well
For example, r/YGOMarketplace is a subreddit with 24K members dedicated to buying, trading, and selling Yu-Gi-Oh cards and merchandise