I think my issue was more subtle than the one
@candlejack experienced, as it took some coaxing to occur after the issue first appeared. Mine didn't have an obvious trigger (manually manipulating the earphone in situ didn't seem to induce the problem, but walking almost always worked to cause an event).
Anyhow, I'd second the above advice and continue to treat them with care and not worry potential issues, same as any earphone. If it shows up, it can almost certainly dealt with. Even if something happens out of warranty, if the experience I had is any indication, you'll still be in good hands for a fix.
It makes me wonder about driver replacement way down the road (or an ambitious modding project). I think an s-model with the presumably more widely available green andro drivers would be a fascinating listen, if only to hear what the housing does to the sound. There's a reason they didn't use them, of course, but I'd still love to hear it.