It's not quite so true now, but lenses for 35 cost less than those for many MF systems, and there are many more choices.

Back when, I was frustrated at affording Hasselblad glass, and traded the camera, some backs and it's 80mm lens for a new F3 and 3 Nikkor lenses. Though more recently, I bought another Hasselblad, and since then have barely touched the F3.