The number is probably derived from his PI services. It also seems like a good enough number to filter out most of the pranksters. I'd fork over a hundred bucks to have someone "confess" at my funeral about some really outlandish swashbuckling lifestyle just for laughs. I'd only go to $7000 for a special sort of loose end that would be far too painful to waste my numbered days on, but would make me feel much better knowing someone's got it handled.

He also lines up an alternate funeral director to have a backup site, and I imagine that's not free.