I searched a few pages for this topic but couldn't find anything recent:
My experience is that it is custom to put where the couple are registered at either on the invitation or put a card in the envelope with that info. i just read the email i got with the poll that more than half of the poeople who answered said it is tacky.
Why?
I would be confused if I were sent an invite without that info. I realize it is an invitation for guests to come to the wedding, not to buy gifts...but they should know where you are registered and no one is forcing them to buy things off the registry. i just think it is courtesy to let them know. Guests aren't going to want to go on a hunt for where the registry is - why should they have to call people to find out? This just confuses me.