Loved this article and had to smile. I just recently finished framing all the art I had pinned up to my walls. Every visitor since I finished the framing says "Your room looks just like a gallery" now! It came out a lot better than I thought it would with a variety of frames.
I intermix art I bought with art from friends and my own best pieces, to the point that I can't just wave a hand at one of the walls and go "that wall is all mine."
But my sketch wall will return in a small way when a large glassless frame I salvaged gets reworked with foam core or cork board in it to pin loose sketches to!