I've heard Reference 3 and Reference 1 at a dealer an hour northeast of me, Audio Video Therapy of Nashua NH. I own R500 (and others) and have a completely different impression.
I would sell my firstborn son to get a pair of Reference 5! Fortunately for him, there isn't any market for a 34 year old guy.
I think the Reference I've heard are in a completely different league and worth the money. Everything that's good about the R series is extended further. Deeper yet smoother bass. More defining treble, accurate yet never fatiguing. Midrange is so realistic I swore male vocalists were standing in front of me. The Reference 3 in particular just made the hair on the back of my neck stand up with perfect imaging and the most defined soundstage I've heard, short of the B&W 800D3 that cost twice as much.
The finish of the walnut cabinets was better quality than any high end furniture I've seen. There is no doubt I would audition these last when I can go shopping for my "retirement" speaker pair. And likely come home with them.