Pricing power is what it is and the brands that enjoy it in spades mostly didn't get there by accident. Patek certainly didn't and I applaud them their successes and hope they continue to go from strength to strength. Sometimes all it takes is a subtle loss of focus on the part of some key management players for design or construction changes to start creeping in that ultimately undermine the credibility of the brand. I rather hope that we haven't seen that from Patek yet.
I generally agree about the increased legibility of semi-instantaneous minutes coutners (which, again, are distinct from true jumping minutes counters), but surely that's not what you were referring to when you said it was more "expensive" than a continuous minutes coutner. Likewise, simpler to construct is not usually something I'd associate with "more expensive". It could be argued that a continuous minutes counter is more reliable and/or better for the timekeeping in some regards, but I'm not sure the arguments would be all that compelling.
Having not had the pleasure (displeasure?) of trying the pushers on a 5960 just yet, I'll have to take your word for it about the pusher feel. Perhaps the sample(s?) you tried was not a notable specimen in that regard? At any rate, the Piguet 1185 is generally quite good/consistent when it comes to pusher feel in my experience.
Isn't there a perpetual split from IWC that's substantially less expensive than the BP?