People have mixed feelings about gift registries. I’ve had conversations where people were aghast at the expensive items on invitations they’ve been sent. I’ve also talked to people who think asking for cash is grabby, and a list of household items is much more refined.
Then there are those people who would rather ignore both of those things, and consider their presence to be enough of a present to any wedding couple. Sure, going to weddings is expensive, but so is paying out to feed 100 of your closest friends and family a 3-course meal.