Agreed and this has been proven already in greenhouse farming. There are many greenhouse farmers that grow crops that would otherwise be impossible to grow in their zone. One example is a orange tree grower in a very cold zone that can sell oranges to his local community at a tiny fraction of what it costs to ship oranges from California. He still makes a profit and the produce is fresh.

Here is a small scale example [1] but I can't fault this guy for keeping it small given his advanced age. I hope I have that much energy when I am older.

[1] - https://www.youtube.com/watch?v=ZD_3_gsgsnk