From what I gather, people think they're somewhat ugly.
When my family bought the first washing machine was the AD 1972.
That washing machine was an AEG and its cost was 4.5x the one of a mainstream Philco, Indesit, Ariston, whatever (or, if you prefer, was 4.5x the monthly salary of my father at the time).
Well that washing machine is still perfectly working after 39 years of continuous service, w/o a single part replaced, while other people changed maybe 7 or 8 Philco.
This is what I call a worth investment.
Back to keyboards there is nothing that resembles this, all the differences are mainly related to details, sometime pointless details, while the core of the keyboard is not just equivalent, but built by the same company.
So do you really think that buying a filco or a leopold instead of a ducky is worth the price difference ?