Ooh. Bad thing, but fortunately not a disaster.

Over the years, since I bought Jake new in '01 ("last year's model", so I got a discount), I've replaced and serviced components as needed, and put tens of thousands of miles on this bike.
So... the headset has never been apart. Ever.
Feeling a light amount of drag when I picked up the front of the bike and moved the handlebar from side to side, I went ahead and pulled it apart, well... not entirely as I left the brake hooked up.
The bearings were a bit dry.

So... I squeezed in some Phil grease, worked it around, and put it all back together. One more list item, I suppose. Gotta overhaul that. The races looked fine, so I may just pull the caged bearings and replace them with loose, for a bit of additional durability. It's amazing that, after so many miles of basically abuse, they're still in this condition.