Totally random start-up issues with this '99 Outback wagon with A/T and
88K miles. Some mornings it fires right up, others it takes anywhere
from 3 to 15 turns of the key to get it to turn over. Or, it will turn
over 3-4 times then stop. Other times of the day, it starts just fine,
but can also happen after work.
Alternator has been replaced and battery voltage at the terminals shows
nominal. I'm thinking starter (although this doesn't seem like a
typical starter failure) or ignition switch.
Anyone else experienced this? Recommendations on brand of starter if it
needs replacing?

Thanks for any help.