3 years old, I think, I have used them a lot for over 2 years, so I am not that upset that they have gone.
I had the fear most people have about servicing their forks, so I only serviced them for the first time about 4 or 5 months ago. They were as good as dry in the lowers, so I dont think that did them any good. Had new Enduro seals for them but ended up putting them in a revelation fork I had as the pikes wipers looked grand, DOh!
I am going to do what you say and just keep using them and keeping the lower oil topped up. Will keep an eye on the wear too to make sure it isnt getting any worse. I imagine if they arent cleaned and lubed every ride or other ride that the dirt getting in may do the bushings in eventually too?