It may be true for 'soldier' plants. However there are thousands of plant species that can't be both efficiently mass produced and shipped while still being of good quality. So you get a bad produce, very costly produce or both.

I can't afford fresh Basil leaves, I maintained a plant in my kitchen in some of the apartments I lived in. The current one doesn't have enough sun. It took 10 minutes of work to arrange and emptying left over water.

Also, if you never tasted cherry tomatoes straight from the plant you don't what you are missing, and how shity is the produce in the market.