Unlocked, high end rooms are one of the best things about my "local" music store. I work about 15 minutes from Alto Music's Middletown store. Place is HUGE, and absolutely FILLED with gear.
They have a walk in humidor for their high end acoustics. First time I was there I walked in just looking around, there was a guy sitting in the front working on something, he says "hi", and tells me to help myself to anything in the room. By anything I mean a Martin D-45, Gibson J-200s, Taylor 900 Series, and too many more to mention. I spent the next hour and a half there and must have played $30K worth of stock.
They earned my business that day, and I've spent a bunch in their store. If everything had been locked up, I don't think I would have gone back.