Long term and warranty and smoking
There are tremendius variations in veneer and there is no such thing as a 'perfect veneer'. What you or I may consider beautiful another would not be willing to sacrifice a glass-like finish for and vice versa. We weed out cabinets we're not entirely confident about and destroy them; no cabinet maker would take back what he would consider a natural feature just because we didn't fancy it.
When looked after properly (as recommended, not in direct sunlight, no localised heat nearby) I'm not aware of any long term degradation. But, as always, you have nothing to lose by Registering your speakers and benefiting from the first owner's extended warranty if you meet the Warranty extension criteria.
One thing I'd like to add about protecting your investment: I've seen a pair recently in the home of a hesvy smoker. Ignoring the destructive effect on his lungs, the speakers tell their own shocking story from the veneer to the terminals, the domes and diaphragms. For that reason we intend to review the Warranty admissability. If you do smoke please think about this carefully.
Alan A. Shaw
Harbeth Audio UK