not to rotate at your home institution. In addition to all the guidance, information, LOR issues, I can easily see a scenario where you are interviewing with someone who knows someone at your home institution.
It'll go something like...
"Oh, University of ..., how is Dr. So-and-So doing?"
"Well, I don't know him well because I didn't rotate at my home institution."
"Why not?"
"Well, because... (no matter what you say here, it sounds defensive)"
The last thing you want to do at interviews is to be put in a position you have to defend your questionable (justified or not) decision. You are likely to sound too cavalier or too defensive. Just like napoleon said, at least do a short one (maybe right before the interview season so that you can do more valuable ones earlier?) so that you'll know what your home program is like. I would not rely on other people telling me that it's a "hit-or-miss."