We're all quilters in one way or another if we are interested in quilts and sew anything related to them. Otherwise, we're seamstresses or art enthusiasts (neither of which is to be scoffed at). You've made quilts, you're a quilter.
Piece quilting became popular in the days when women were needing to make every little bit go as far as possible. The pendulum seems to be swinging back that direction and there is a definite trend afoot to create beauty from scraps. No need to go into a quilt shop - ever.
Like you, I love to plan and think about the possibilities for quilts in the future. Isn't it great that plans have no barriers and that there is as much pleasure in thinking about, reading about, looking at, and designing quilts as there is in making them!!! Good thing, because right now my life doesn't have much room in it for sitting together with fabric, needle and thread (but I'm still a quilter).