Madisound also sells diamond tweeters for $2,900 each.
The Madisound Speaker Store
Piano gloss finish on towers is a $2K upgrade from Salk.
So a big tower with just gloss paint & tweeters alone would cost about $8K!
That doesn't include cabinets, midrange drivers, woofers, crossovers, etc.
Yet, people can get 20% off on B&W. So the whole 802D2 is $12K street price per pair. That's what I paid brand new. Demo (like new) would be $10K.
It doesn't seem like ID or DIY is always more cost effective.