It's been a loooong time since I was on the Amalfi Coast, so looking for your thoughts....
(November trip so hopefully lighter crowds)
Pompeii for a full day (or 2)
Blue Grotto bucket list
Trip to Capua to see the Amphitheater
Option 1: Stay in Sorrento for the Pompeii/Capua days, then overnight on Capri for a night or 2
Option 2: Stay in Sorrento the whole time (I believe they do have a ferry to Capri in November)"
In November there are Monday and Saturday ferries from Sorrento to Capri.
Where are you going after these days?
I would stay in Sorrento the whole time
Since the Blue Grotto is frequently "cancelled" because of rough water, I would expect that November is a month of more cancellations. We skipped the Blue Grotto. Have you checked daily average temperatures for November? Presumably some hotels are closed in November, I would think especially on Capri.
Have you been to the other four ancient sites, as well as Pompeii? Not saying you must do this, but you mention two days at Pompeii.
There is no doubt Sorrento has the best transit connections, and it is closer to Capri than Naples or Salerno. But you should check frequency of ferries from Naples, a big city. November reduces the number of ferries everywhere.
Because people live on the island of Capri, it has ferry service between Sorrento year-round, and every day that sea and wind conditions allow. Yes, they can cancel if the crossing isn't safe.
https://www.sorrentoinsider.com/en/t/sorrento/capri
Tim brought up an important point about the Blue Grotto: the same ferry cancellations for weather apply, and more frequently as this activity involves very small boats (rowboats) that have to enter a very narrow space. In fact, it's currently closed to weather conditions as I'm typing this. So, it's not 100% that you'll be able to cross it off your bucket list if conditions aren't favorable. We skipped it too, were never sorry, and had fun just hoofing around and exploring the island.
