Yes, the Gun Room was a thing of pride, conversation and wonder in the 1950s and 1960s.  Some notable Restaurants displayed the owner's collection for the delight of the patrons.  Andy Palmer's Military Inn in Dearborn, Michigan, comes to mind.  Andy use to appear regularly on TV ("Sage Brush Shorty Show") in costume appropriate for the Historic Firearm he would show and explain to the kid audience.  I was a kid and loved it!  When I was involved in Civil War and Bicentennial groups, I would routinely be invited to appear in Uniform with Weapons to to explain and teach elementary, junior high, and high school students aspects of our Military History.  The students loved it!  Now the only safe thing to put on your walls is photographs and graphics.  You have to be mighty careful with whom you share your interests and hobbies.  Anything of value or potentially lethal has to be out of sight and locked up.