Marvin, a bit opinionated aren't we, I see nothing wrong in sending e cards, I don't usually send either, I just use that old fashioned way, I simply phone and say Happy Christmas, a little more personal than a tacky cheap cards that are massed produced and filled out in a long mind numbing session that most people detest.
This does not apply to all the ABers who I'm sure pick their cards individually for each person and write in a loving manner to each person regardless of whether they received one first. will that cover all eventualities?