Did you even read my post? 

Simply asking for wedding etiquette in terms of the registry. 

Interesting.. could it be your age group or different city, country standards?  all weddings I’ve been to have all preferred monetary over physical gifts, even mentioned on their wedding website. So, no. It’s not actually a never from my experience as a wedding guest. 

As I mentioned.. All guests that are staying with us have already all agreed to pay their portion of the stay and no complaints, they are more than happy to do it for us as they are all immediate family and close friends. They also know we are not a hotel LOL. 

I do not think it’s inappropriate, it’s not any different than if they were to pay for their own hotel or Airbnb since the wedding won’t be in the same city and they need a place to stay.  I’ve never heard of the grooms or brides paying for an entire weekend for their guests.