Curious what people think is the best "value" high end speaker (~5K to 15K)

There are some Vivid speakers listed on agon at a big discount. I think the former distributor. I have their smallest model, 1.5, and love them.
Look up the Soundstage reviews.

Manufacturing cost does not cover overhead. You missed the cost of IP.  Speakers are more than mounting a couple of drivers in a box. 

I've only purchased speakers used.  For high end after I turned 25, the Acoustat Xs, Acoustat 2&2s, Martin Logan Quests, Martin Logan Monolith IIIs and for the past 20 years, Legacy Focus and Signature IIIs.  The Legacy speakers were a bargain used 20 years ago and have lost about 1/3 of their value since then since they are considered "old" models.  I'd have to spend $50-60K for significantly better speakers to do what they do in tone quality, dynamics, bass, off-axis wide response (for multiple listeners) and high sensitivity all wrapped into one for a medium large size room.  There are better speakers for less but they give up something of that quintet of features, usually bass, off-axis response or sensitivity.  I'm never going back to stats or panels and horn speakers are also out.

A lot of interesting responses but one speaker that I would really like to hear would be the Volti Alura. 

I really enjoyed the Verity Parsifal Encore.  When they pop up for around $5k in good condition they usually sell in a day.  A pair was listed last night.  Gone this morning.