Does your opinion change if the three full days would be Sunday, Monday, and Tuesday? We would fly in Saturday pretty early- based on the flight, we’d probably get to the parks around 2 or 3, so not early enough for morning stuff, but it would be a fair chunk of time.
The extra day seems nice, but we looked into some options and didn’t really find any we wanted to do, other than maybe stick our feet in the Pacific. It isn’t enough on its own to justify the $1000 minimum we’d have to spend on extra hotel nights and park tickets, so it’s hard to swallow.
I would have liked to see an Angels game, but I don’t think they’ll be playing then, ha.
ETA: Is it common for better flights to be added? My impression of our home airport is that it’s not very popular (12 gates total, I think), not to mention it doesn’t even service some airlines