I'm mixed, let me explain:
Hold
Without using it? It's a capital sleeping that doesn't produce anything (revenues), whatever it's in the long or short term. Capital that can also lose value
Use it for yourself
Yeah, it may be funny looking at first, you may tell yourself it will save you some money because you won't buy fruits/vegetables.
How many will you save, $100 monthly? It's laughable if we're talking about 1 acre. (You can't grow just anything on just any land...)
There is surely something more profitable to do.
Use it at another scale
In many developed countries, the farming industry is dying, there are so many farmers that don't earn half of what a full-time worker makes.
Thanks to great Europe and its stupid quotas.
Considering the most important point is "money" and there is different things more profitable to do, I don't think I would continue with it, I would prefer to swap for something else (still in the real estate). Perhaps not right now, in 2-4-6 years not a problem, but in this industry you need to think for the long term, 15 years minimum.
I'm personally looking to buy the blood in real estate (if it comes) in the next 1-3 years. Another big wave of COVID-19 and associated economic decline could shock the real estate markets pretty hard. A depression would hit food commodity prices, which would in turn devalue agricultural land.
I'm betting on it too. And it will be a perfect timeline for me but I'm not interested in agricultural land, I prefer to buy an apartment and make money with, borrow money to buy another one, and repeat the story.