There is definitly a market for tilling gardens. I'm not sure about planting and maintaining vegetables though. Many people who have these garden don't like tilling them in the spring and fall because they don't like own a good tiller or they don't have the strength to do it if they are elderly. I don't own my own tiller but i've used friend's tillers to do mine and have had people in the neiborhood hire me to do their's. At some point i'm going to purchase one and offer tilling as a service. Mantis tillers are great for small spaces and Troybulit front wheel drive tillers are good for large gardens. I've used them both and they did an excellent job.