Exactly. I have seen pictures of some 'high end' goldfish. The pearlscales seem to be the worst. Some are so bad their gills can barely open up enough to let water through because the body is so swollen. Yet people are honored to spend $250 on one. I pick out ones that are round-bodied, but have no problems with it. Mine have no problems swimming, buoyancy control, digestive flow, and are hardy (for fancies).