While this isnt really economic, and Im not 100% sure you can even trade the cards you get from the theme deck, the one theme deck worth getting is the Emboar one
JULY 12 CARD SHOW SUPERCON NYC QUEENS COLLEGE | Treasure
Standard Ranked puts you on the competitive ladder, using only the cards available in the Standard format at the moment, but if you have more cards from previous sets, choose Historic Ranked to have the freedom to use all the cards you want
5 Snorlax 33/95: Nintendo Promos (Staff) $276.32 The Dark Side Snorlax raises its arms high in the air, but it's to gather energy for a terrifying Shadow Ball rather than to celebrate its placement as one of the most expensive prerelease promos in the Pokemon TCG
It just felt like a continuation of this rather than a fresh look at a beloved classic set
That's just enough mana to cast another Adamantoise and two Aegis Turtles