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In that case, you're better off just buying your produce at the grocery store.

i mean, how many hobbies can you say that about? most of them i imagine.

hobbies are about tinkering and learning. we usually put far more in financially then we get returned financially. hobbies are expensive.

Like home made beer. Unless stuff at the store is really bad and/or super expensive. But in terms of gardening I'd bet on hydroponics.

But you can watch it grow.