Was trying to switch from my 64gb iPhone 6 to a gold SE and per the Apple rep on chat today there isn't a single gold phone from Baltimore to NJ currently in any size. Talk about eager and frustrated.
The gold option sure does seem popular since they introduced it!
Give it a week or two. They'll show up. Be sure to check out other retailers as well. When the iPhone 5 was first released I walked right into a Best Buy and picked one up while Apple had the phone on back order everywhere.