I don't think we have seen an unusual spike in failures.
The cable attachment points are the weak link as this is where the flexible parts meet a rigid part. Unfortunately, chains are a wear item like belts, tire and hoses in a car... They don't last forever.
V2 is better as the flex points are buffered from the rigid ends.
As far as value... $75.00? The most expensive one we have is about $54 (V1) and $39.99 for a V2 version. We start with stainless links and labor involved in making these chains with the flexible cable attachments. A good bike chain is only a bit less expensive and MUCH more simple to make.
Director of Parts and Accessory Sales
Warranty and Technical Support
Hobie Cat USA