As explained with the Pikachu C above, its incredibly hard to find Erika in this Master Ball Mirror alternative, to the point where some would even argue its tougher to find than her SR version
Follow Market Trends The Pokmon card market is dynamic, with prices that can shift quickly
Unlike 151 where if you rip an ETB and pull the main chase card, youre still in the negative this set has a chase card (Pikachu SIR) thats worth around $331, while the ETB costs about $99
The sets competitive depth shouldnt be overlooked
Even ten retro formats would be inherently overwhelming for a new player, and those new players usually just ask the seasoned players what the most popular options are or just start playing one of the most modern formats on the website (If they dont already have some knowledge of retro Pokmon when they create their account, which many of them do)
Jim Davis recently went over some of the best reprints from the set over on the MTG Arena YouTube channel