ATM: My son wants to get a better acoustic guitar

My 14 year old son wants to upgrade his acoustic guitar from his entry level “Jose Ferrer Primo” (he has an electric too). He is quite accomplished, having been playing for about 9 years. When I asked him what sort of things he wanted to play on it he told me Let Her Go by Passenger. How much is reasonable to spend? What about an electro acoustic? Your help needed please. I know how the guitarists here love a thread like this so my thanks in advance.

https://youtu.be/RBumgq5yVrA