Hillary is too vain to have deleted 30000 personal emails

Imagine what a treasure trove of historical detail was contained in the 30000 emails that Hillary deleted. Future historians certainly would mourn the loss of such a wonderful source of personal information. Any single letter written by Abraham Lincoln is considered a precious historical document. Hillary certainly was aware of the fact that it was possible that she was going to be President of the United States some day. Would she be so cruel as to deny posterity a view port into her personal trials and tribulations by destroying nearly half of her email production over a period of years? My bet is that somewhere she has preserved a backup of her emails for her memoirs and for posterity.