Congratulations.!!
I got my first ereader in 2009. My $$ totals are embarrassing and I'm not even counting books I bought for others, so I won't describe that at this point. It was an eye opener when I did a spreadsheet following Paul's comments a while back. I was not surprised by the totals for the audiobooks, but the ebooks - well, that was painfully high. Thus, I have another method to limit my spending. Just look at the total $$ for unread ebooks!