I did these for awhile when I was new to quilting and the internet. In fact, I started with a different hop that had a more manageable number of shops to search than 130! I actually won a $10 gift card on that one, too.
I've seen two other smaller ones lately, but they are almost too small. What I liked best about the online hopping is that I learned a lot about different fabrics, especially new lines. I learned what Civil War prints were, 30's repro, batiks, etc. I found sites with awesome patterns that I bookmarked. I found styles that were totally not me, so I got faster at scanning and assessing fabric websites.
All in all, it was fun, but I don't do it so much any more...