It's funny, only now I realize that I've developed something like a routine when I arrive in Santiago... First I allways go and great Saint James and thank and pray, then I go to the pilgrims office, then the hotel, then to Restaurant "Rua Nova" to say hello to the owner, then siesta, then dinner followed by a few drinks. Next morning a big breakfast, then the pilgrims mess at 12, afternoon museums or just sitting outside, in the evening a big meal, and then the next morning the bus to Fisterra.
I personally think it's worth to spend two days in Santiago.