Below you'll find two charts listing the Sales of Season 8 by individual issue and trade paperbacks. What's most fascinating to me is that Season 8 remains #1 in the trades to this day (it hits the #1 rank three times, #2 once and #3 once also). And Diamond doesn't keep track of all the trades that are bought at bookstores like Barnes & Noble and Borders. So what's it mean? That Season 8 readers who read TPB are going steady apparently. Yes, people aren't buying as many of the individual issues, but the steady readership in the trades suggests it's not as simple as a huge portion of readers dropping the book. It seems to suggest that there's a conection between the attrition rate of the comic and the manner in which you read it -- TPB appears to work best.