Our Best Buy has, and I assumed, probably wrongly so that all have the higher end (Magnolia) room/section at the back of the store where they have the PSB M4U2, Sennheiser Momentum's, NAD, B&W P7's and many others for demo. They also have two higher end rooms setup with much better speakers such as MartinLogan and B&W's plus better electronics than you'll see on the main floor. I didn't even know that these existed at our store until a month or so ago as I thought all they had back there were the top of the line 4k LCD TV's and home theater gear.
http://www.magnoliaav.com/ (you can check for locations)
I did find out recently when I bought my B&W P7's that the return policy at Best Buy is now 15 days on many items (I'm not certain, maybe it's on all items) rather than the 30 days that they use to have. Best of luck, maybe they have on close to you.
Back on topic, love me some Schiit Audio gear and can't wait to read the Lyr chapter.
Edited by KLJTech - 2/11/14 at 4:30am