Short term, having all your photographs on an iPad seems cool and hip. But think about that, what happens when there is hardware failure and the images are no longer retrievable on that device? Hopefully there is a backup somewhere, but if not they are gone.
What's the point? Having important life cycle events and memories in an album of real photographs is the only way of ensuring your legacy continues. There is no guaranty that todays technology will be usable even a decade from now. Example, take a look at your cell phone. How old is it? Have you ever lost or dropped it? Did you end up not being able to retrieve the information on it? Life gets busy and we neglect the constant housekeeping needed to keep our digital world safe.
So the next time you are planning an event, think of your photography as a long term investment. The dividends are knowing that past is not lost in the present.