Building multiscale means more work to build which means higher prices and more complex repairs. A reasonable jump in work/cost for marginally better playability. Also more things for the builder to fuck up and get wrong. That's kinda normal though, there's a lot of terribly-built instruments on the market and a lot of customers who can't even tell (e.g., people still buying Gibson despite decades of everyone saying their instruments don't QC).

I have all kinds of wild/bizarre/insane instruments for different purposes -- there's nothing puritanical here (I spend most of my time at NAMM in Hall E). I'm just saying that for 99.9% of players though these features aren't doing a damn bit of difference and most people are buying them out of gear-worship.

I think it's wild that we're talking about the "physics" of neck construction/playability and tension when at least 80% of guitar players can't even properly set up their own instrument and their tone sucks. It's in the fingers, man.

If any of you think that cargo-culting among software developers is bad, guitar players are that 10x over. If not 100x.