I don't know Kathy. Here's a quick and dirty comparison:
11 nights, Med., Navigator, F Suite, $7795 +$310, free air, Sept.28
12 nights, Nautica, PH2 $5994, Sept.9, +$312 +air taxes
The Oceania air taxes are an unknown commodity to me, but let's say it's another $300. (There's also the shipboard credits and prepaid gratuities.) That leaves roughly $8100 Navigator versus $6600 Nautica. That's a lot of drinks. And if you can settle for an A2, then big savings, more like $4200 or so.
(If I'm reading all this right.)