Just because we make them doesn't mean we do it for ourselves. Some quilts just speak to us with the fabric that was used---do you think we'd find it ourselves after seeing it and falling in love???
By all means, indulge yourself. Art is art, whether we do it or treasure another fellow quilter's work.
If I had the money and circumstances, there's some places I'd buy up all the quilts, have another house/huge space built just to showcase them for myself, tho' I *think* there would be others that would enjoy seeing it all too. That's part of my dream.