Hah, the Banker'sBet was actually one of the first books of Daggerfall I read. It was hilarious, yes, but I'd heard the joke before. Unfortunately, this made me think that the books were just modified jokes, so I wrote them off as not all that interesting to explore. It was quite a few years into the game that I finally sat down and decided to read some; then I realized that they were more worthwhile.
Wabbajack is still my favorite.