If you are a pure investor , French cards offer an interesting risk/return profile
Cleffa #113 is one of the cutest cards in the pokemon ruler of the black flame card list, appealing especially to collectors who love baby Pokmon
Good questers often have low Strength, which often lets the opponent take control of the board with favorable trades
Vintage cards, like the most valuable Pokemon in the base set, often carry a premium when they're in good condition, allowing even less popular Pokemon, like Kangaskhan, to have some high-value cards
Having Channel is not a reason to then go and play these big stupid things
Additionally, theres a way to tell if a sealed pack contains 1st Edition or Shadowless cards