When your boutique Hi-Fi product doesn't appear to justify the price

So I'm sure some folks on here might be familiar with the YouTube channel Mend It Mark but if not and you have a passing interest in electronics and fixing things, including hi-fi stuff, it's worth checking out. His repair of a vintage B&O Beocord tape deck is long but worth watching to get a peak behind the curtains. But apparently he was recently sent a very expensive boutique phono preamp by the boutique manufacturer itself, at the behest of the unit's owner, for repair. The manufacturer claimed Mark couldn't repair it and of course he did by reverse engineering it. In the process he not only repairs the electronic issues but the case that was damaged during shipping. Now the manufacturer appears peaved that Mark not only fixed the unit but reverse engineered and exposed the very DIY nature of the piece of kit so he filed a copyright infringement on Mark. Anyway, the original video is worth watching, again for a peak behind the curtain but also the lengths to which Mark goes to repair a unit considered unfixable. Here's a link to the original video by Mark and another to his follow-up video about the copyright claim. 

I think perhaps the lessons learned from this are while there are plenty of boutique hi-fi makers out there doing great work, there also appears to be some out there that aren't too great and don't like their work being exposed for what it is.