It simply depends upon how the quilting is in your area. What I gather in my reading of posts from professional quilters over the past couple of years, is that it really all depends upon your skill level, the amount of piecer's in your area and how many hire out for services, as well as how long the current quilters in your area have for waiting lists. Also to be considered is whether or not the local shops will recommend/support your services.
I recommend doing some investigation in your own area, and through your local guilds, to know for sure. Good luck!