So I decided to do something about this problem. I went to the Kinko's downtown, slapped a casebook down on the counter, and told the guy it was too heavy and I'd like to do something about it.
He was skeptical. Copyright, he said; I can't just copy it for you. No, no, no, I replied, I want you to leave the pages alone. I'd just like you to rip off the cover and rebind it in smaller units. It took a few hours, but for $25 I converted my casebooks into volumes that could be mistaken for good old reliable paperbacks.
I'm expecting Peter down at Kinko's to have maybe a hundred people coming in over the next few weeks asking for something similar. This is going to be huge.