Everyone has his or her own passion. Sealbeater's passion is not my passion; however, I applaud him for his experiment.
I like to put 100 or so (or more ebooks) on my Readers, but I have no intention of reading them all within the next year, as there are just too many to accomplish that goal. I like the idea of having a large library on my Reader, and in knowing that I can selectively choose what to read.
When one thinks about it, in one sense he's doing nothing more than what one might do with a book collection software (calibre or what-have-you): We put the books in the software and play around with it to our heart's content, reorganizing, sorting, deleting. The only difference is that this "software" [Sony Reader] is also capable of allowing one to READ what he puts on it.
So this is no big deal at all, whether it's one book or 30,000. Get that many books on one Reader, and people WILL start to take notice.
Don