To say
not even close would be a wild exaggeration. I guess I would not fill up even the father of eInk ebook readers, Sony PRS-500. I have ...I just checked. I guess 500 would be full

505 definitely not. 151 MB, 140 books.

Although, I am wrong. Some of the books are not on the reader because I haven't Russified it, so I have not uploaded 2 series in Russian. Thus I have only 124MB, 116 books.
6 years of reading? Taking into account my present health conditions, I am not sure I am going to live even that long

Yes, I would be able to fill up PRS-500 and one half of PRS-505. To be honest, I don't know how much space I have on PRS-650. I have not checked this feature when buying the reader.