If you like collecting stuff - like cards, for example - we say YES, collect these cards! They’re wicked cool! However, Super Powered Smash Masters is not like the average collectible card game because when you buy our base set, you get ALL of the available cards. All. The. Cards. There are no random cards. There are no booster packs (unlike major collectible card games, which subsist on random card packs).
With enough support, we'd ultimately like Super Powered Smash Masters to become an expandable card game, in which we periodically release expansion sets with new heroes and themes. Like the original base set, each expansion will contain all the cards available for it, with no randomization. You'll get everything. But... let's not get ahead of ourselves!