if you do a search at the top there is a list of long-arm quilters across the country...prices vary greatly from locale to locale. anywhere from $30-$45 for small quilts (flat rates...) or 1.5-2.5 cents a square inch...that would be...a quilt that is 60"x72" (throw)at 1.5 would be about $65; at 2.5 would be $108...then you add postage/shipping and insurance.
i think it is always best to learn to do things yourself, but if you find you HATE the process then start (shopping around) for quilters who do the kind of quilting you like in your price range.
it takes practice and you should start small to learn to quilt on your machine. like start with potholders, or placemats..once you have a good (flow) to your quilting and are happy, make something larger...and ease your way up to a large quilt