I honestly believe that the PTCGO is the first giant step in that direction
Dawn: Special Art Rare $97.52 A New Day Even though Dawn doesn't boast some of the most expensive full-art trainer cards you've ever seen, she makes an impressive mark as the most desirable trainer card in Japan's Inferno X set
Not only does it help you with attacking, it also helps with defense, being a great blocker with reach
For 1(G), this instant gives you a modal choice, destroy a target artifact or enchantment, or put a +1/+1 counter on a creature and grant it indestructible until end of turn
Extra Boosters have a tendency to be short-printed, so the chances of pulling the coveted manga are reduced quite a bit, if youre looking to play one of the best decks in the format at its max rarity, then be prepared to drop at least $5,000 for a playset