vicnric writes:
... landing in the AM of September 4, and I then hope to buy AVE tickets at the airport Renfe office for a noonish train to Sevilla. Is their a strong likelihood that we can do so, or do these tickets sell out far in advance? ...
In a half dozen or so times I've travelled on AVE I've never had a problem with it being sold out. It runs hourly. Your "noonish" target might put you in another situation. I haven't checked Renfe's site recently but as I recall some midday trains were
Punta (peak-period) priced. There are 3-classes:
Turista, Preferente and Club and 3 time-of-day rates:
Valle, Llano, y Punta. Most times you will probably be travelling
Turista-LLano.