Don't quote me on this, because I do not have much experience, only what I have learned through reading. However, creating a service should be fine as long as

Don't quote me on this, because I do not have much experience, only what I have learned through reading. However, creating a service should be fine as long as you can prove there is a market for it. I am currently working on a service/product that I know for a fact there is a market on (its a large enough market to know that there is an opening for this service). You also need to either have alternate forms of revenue, or know that your market can afford the product.