starter inconsistency

[Kneale Brownson]

Saturday a.m., when our ambient temperatures were in the low single digits, I went to start our 200q20v avant and only heard a click.  Sounded like the starter solenoid click.  So I had to take the wife's V8 to the ski hill because our spare V8 needs a new fuel line and our 200q20v has summer tires and no insurance because I've been planning to spend the winter working on the tired old (280K miles) suspension bits.  Today I'm getting ready to bumpstart the avant with a tractor so I could drive it onto my hoist to check on the starter wiring and/or pull the starter, and I was putting the key in the ignition so she can turn it on and let the clutch out as I'm pulling the car, and just decided to try it.  Started right up.  Restarted a bit later OK too.  
   
  So is it the starter on its last legs or bad wiring?  Would the cold affect the wiring or is it more likely old, dried lube inside the starter?