Parts of vista are fine, if you are in shadowridge you’ll like it, north of the 78 it’s hit and miss but if you like the price, the neighbors and can afford it, why worry? If you don’t have to live in Carlsbad or Encinitas, then it makes sense to look elsewhere where prices have come down considerably. The whole thing is about finding something you can comfortably afford and be happy with, sounds like you did it.
Ultimately this will cause Bug’s butterfly effect to come true. If places ten miles away drop in price significantly and shoppers looking at carlsbad or encinitas will look a town or two away, then ultimately it will put downward pressure on the towns they fled, if this keeps up, CAR and JP will get the price they want and then everyone will be happy.