Let's get this out of the way first: Yes, I know this isn't the most scientific of polls. Yes, the sample has changed from year to year. Yes, there are two polls from 2009 because I forgot one at the end of '08. Entertainment purposes only!
Here are the past polls:
2008 (technically beginning of '09)
And here is this year's poll. Do you think there will come a time when you buy mostly e-books? Click through for the poll if you're reading via e-mail or in a feed reader: