Booster packs tend to be cheaper than blister packs, but they offer fewer cards and no additional goodies
However, heavily played (HP) cards can provide a nice discount, with sales hovering around $5.95 if you don't care about the condition.
Apart from these cards, the rares from Unhinged and Unglued are basically worthless, and even the handful in the $23 range are pretty hard to sell for a reasonable price, with high spreads if you look to sell them to a buylist and little demand in trade binders
Pikachu flourishes when other Electric Pokemon are on the Bench
Other than that, though, they all appear to be the same inside, featuring the tokens, strategy insert, reference card, and deck box