Agree with APT, above. I don't know that our master bedroom is any larger than what's currently on the market, but our TT does not have a solid wall between the bedroom and the rest of the trailer. Instead there is a curtain that you can use for privacy. We also have a window at the headboard/front of trailer that lets in light and eliminates that "closed in" feeling I get in most master bedrooms I've seen lately. And yes, we do have room to get dressed in the bedroom.
Go to as many RV shows as you can and visit as many dealers as you can. Pictures and videos from the Internet are fine, but you can't get a real sense of space until you're actually in the unit itself.