While bagging an old issue of Batman (#26) I noticed that the Jokers taxi fare was $37.73.

I didn't think anything of this when I read it a few months back but having just read Batman #38 yesterday it really jumped out at me. No spoilers but those numbers are prominent at the beginning of #38.

Has anyone else noticed this? Is there a pattern or some deeper meaning to it all? Do these numbers come up anywhere else?