I've become quite impressed by Mr. Chumbley's writings. And Daniel A. Schulke's as well. Fortunately, I've been able to find everything of his I've wanted in PDF's, so far. Nothing replaces a good hard copy, mind you, but I suppose I could always print them out and have them spiral-bound.
I see that Weiser Antiquarian has Vol. 1 of Chumbley's "Opuscula Magica" currently for $75.00...