Registry?

My fiancé and I are moving two states away right after the wedding. We’re only taking my small car and thus don’t have a lot of room to take a ton of gifts with us, so we would rather have our guests give us cash or gift cards than actual items. I’m including a message on the invitations such as, “The couple is moving to [State]! If you would like to help them start their new life together, monetary gifts are sincerely appreciated.” My friend insists that even though we have that message in the invitation, guests will still gift us actual items and says we should still create a registry so we can return the items we receive for gift cards and later get discounts on other items on our registry. I have no doubt people would still gift us items. And I know it’s entirely possible to get stuck with gifts we don’t want and can’t return if we don’t have a receipt or a registry. I see where my friend is coming from, but I would think MOST guests would be understanding and give us gift cards or money. I know there’s an option to have gifts from a registry shipped to us, but we won’t have a permanent address yet and I don’t want to burden friends already living in the new state with getting packages shipped to their house for us. And I just don’t want the hassle of making a registry and trying to return a ton of stuff later. It also feels kind of wrong to have people take the time and effort to choose a gift knowing we’ll likely return it anyway. Thoughts?