many-many very famous quilters create their master pieces on a simple domestic machine- and do fabulous quilting with them! it does not take a special (or expensive) machine to create beautiful quilting- it only takes motivation AND PRACTICE.
no machine will do it for you= what ever machine be it domestic-mid arm or long arm takes practice
instead of trying to find a different machine to spend your $$ on- save the $$ for fabric- and practice with what you have if your machine is a good one (and it sounds as if it is) stitches nicely with even stitches- that is all you need.
there are many tutorials and u-tube videos to show you ways to go about it.