probably because they are the plushest fork on the market, and everywhere outside the UK they last forever.
Remember Fox fork are produced in california and most of the production is sold in california too. Why should they spend money for UK market when from a commercial point of view it’s not worth it.
RS are a definite no no to me as I have seen far too many psylo dying after a week of use and I have tryed a commencal meta6 a month ago which 6 month old RS add more wobble then anything else.
New zocchi have been crap too. The AM SL on my hoss never worked well. And the new one need taking appart to have the lubrification oil removed before even being used.
So there is no such thing as “perfect fork”.