Guilty as charged.
Currently trying to NOT buy the next Dana Stabenow in the series (#16) as I re-read it. (Originally read as Audible books.) I'm hoping if I hold off I'll spot a sale or something.
The base price of Audible books, by the way, is something like $10 if you prepay the year. Especially if you figure in discounts, sales, etc. I don't prepay (silly, really), so I think I'm paying $15 a month. Which, when I net in the sales, etc, probaby gets me down to an average of $13 a book.