This is a little beyond what I usually talk about, but I really like John Paul Caponigro's blog, his style, and this explanation;
This comes at an interesting time for me. I've recently sent one of my favorite images to a printer to print both 11x17 and 16x24 sizes. After much anticipation for the prints to arrive, I was extremely disappointed with the results. This printer has provided excellent quality and service over the years. So I believe it's truly a color management problem then a quality of print issue.