When they make it possible to vote online I will sign up. As it is I am too busy to put down my mouse, go outdoors, get in some form of public transportation, walk from that to the polling station, wait in a line, pull or push some levers/buttons/switches, get hassled by some political groups on the way out, and then do it all in reverse.
Actually, I wanted to vote this year, but realized too late I wasn't registered. But yeah, if you don't get that card, you might as well stay home.