Originally Posted by tvetter01

There are some versions of the MegaBonus that are based on stays (and it would benefit you to hotel hop for that), but it sounds like you got a "nights" version.

Beyond that, there isn't really any reason to hotel hop, unless you're platinum, and you want your platinum arrival gift multiple times.

ETA: Do you mean room hop within the same hotel? The system is supposed to catch that and only count it as one stay. I have no idea how effective it is at catching it, though.