The trading card market has produced some incredible sales over the years, with collectors paying record-breaking prices for extremely rare cards
Even if opposing characters do have Evasive and come after him, they have to get through five willpower - which will likely take a couple of hits
Even though many White color creatures are relatively weak, they are backed up by a large variety of spells, enchantments and auras that help make them even stronger, or that make them simply indestructible
The market for these cards has grown a lot
The costing system isn't bent all that much
I do have to say this is purely speculation, but given how big a part of the collecting experience is, it seems likely that one Pikachu card will be held up as the GOAT of all the Pikachu cards