The gems offer more bang for their buck and can be used to purchase a multitude of cards, generally in bigger quantities
This is where I think the idea falls flat
Akroma's WillAkroma's Will (241,092 Inclusions, 9% of 2,556,456 Decks) If we've established that five or six is the going rate for giving all of your creatures double strike, then Akroma's WillAkroma's Will is beating that rate to death with a hammer, providing not only double strike but a smorgasbord of every other keyword, as well
Collector Strategy : Cautious Buyers : Focus on time-tested staples like Pikachu with Grey Felt Hat (averaged 132% annual growth since release) or newer hits below $60 the current sweet spot for risk-averse budgets
Additionally, this year the Pokemon Blastoise will see a lot of focus, with a free one for Pokemon Champions and a coin featuring its Mega for TCG Live