I can't say you're "wrong", but I don't agree with your philosophy.

I don't automatically send a gift just because I'm invited. Maybe you meant you send gifts to people whose wedding you wish you could attend, but can't?

I would not mind if someone attended my wedding but did not send me a gift. But I would not attend someone's wedding without a gift. If that means I pack a sandwich instead of eating at an airport restaurant and using the money saved to buy them a set of towels or a lower priced registry item, so be it. (But of course you wouldn't haul the gift across the country, you'd mail it ahead of time:)).