Why do Harbeth speakers have such a cult following

I hope some of you can upgrade to Coquille St. Jacques  

I always enjoy a little Bubble ’n Squeak with my Harbeths...

This question was asked five years ago and I it as pertinent today as it was then. There a lots of great speakers that don't have the following as Harbeth. My guess would a combination of factors such as neutral sound, half decent cabinetry, Stereophile reviews and the British mystique. I got sucked in. I wanted to upgrade my PSER3's and it was easier to go back to where I purchased them and listen to something in the same family. I now own the 30.1's but it took 4 amps to get the sound I wanted. Started with NAD M2, Arcam, Moon and now LFD NFSE Mk II. Without the latest amp, I would have sold these speakers. 

Bozak did Harberth better back in the 60's!  Time to move on...unless your talking 60's pricing.  

As speaker cables for my Super HL5+ I am now using Duelund DCA16GA tinned-copper tone wire that I read about on Jeff Day's website. I replaced a pair of Audioquest Castle Rock with them. To me they strike the right balance with the Harbeth's but YMMV. I have also used Cardas Golden Reference. All three of these speaker cables work well with the Harbeth's IMHO, I just prefer the Dueland.