For the price of a game you can make like 2 or 3 cheap magic decks that are still effective and fun to play, or if you're going super minimalist more like 5 or 6. And you can get a lot of entertainment out of those decks.
Honestly though unless you hardly buy any games at all mtg is probably a cheaper hobby even if you're not going cheap, unless you're going balls to the walls and spending hundreds of dollars on every deck-- which is hard to do even if you're making the most effective deck you can. A lot of the really good cards are cheap and that's by design.
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No problem!
This is a cute and pop genocide of love!