There are various reasons
Marketing
the higher the price the more people think "it has to be good"
Mark up
The higher it is, the more dealers are interested to get it
Quantity
Analog sales are not comparable to those 10 years ago
Quality
Today we have much better machines, more precise and cheaper in production *aehm* did I miss something?
I know most arms, or listened to them, most are not worth their high price (from performance in comparison to other but I am afraid, no one is interested in that).
Analog is on the way to become a "Boutique Product", it's nice to have, the next step of "My Horse-My House-My Boat and it is better to sell 5 units for a very high price than 30 for lower price, less work, less discussions and for final one can say:"Well, you know, it is NOT for everyone"
Price has -unfortunately- not a direct link to Performance.
Marketing has own rules :-)