Both methods inspire but you need to do machine stitching as well as hand work so the investment in a good machine that sews straight stitches is wise. You want to make something quickly and a machine will do that for you. In the long run, you will need a sewing machine even if you do hand piecing. Seams a yard or more long will not hold up when you put the pieces together if you do them by hand. Start with a small project and your curiousity will take you to the outer limits. There is a need in quilting for both hand and machine sewing, the quilting world awaits you.
Go for it and good luck, be ready to learn and be open to help when offered.
Carol J.