Hi,
there’s a number of reasons for price increases within HotSpring.. movement of parts , cost of parts and freight of components into USA to manufacture… us in NZ have also seen a huge Hike.
the new Freshwayer system is much more user friendly and easy to use than the old Ace system. One reason is the new freshwater system has cartridges you change every 4 months… instead of a pricey salt cell.
it’s crucial you follow a strict testing regime to ensure you don’t under or overdoes the pool. And you will have a happy experience with the freshwater salt system.
also you will still will be required to shock the spa with chlorine every now and then to assist with the freshwater system.