Yes, it's very tacky. Unless there was another card, too. If that's on top of other gifts, it's not so bad. But an e-card instead of a regular card is lousy. The guy doesn't deserve you if that's what he sent.
As a woman, I would be a bit irritated if that was all I got. I think if he wanted to send me an e-card at work that day and then follow up with a real card at dinner later that night then that's fine. Just a simple e-card tells me you don't really value our relationhip.
