I have never claimed the AIA is a Lee Enfield. It has features from that design, also Savage and other modern designs with newer manufacturing methods. The value over time will be as all other firearms, some up some down time will tell. Useability and suitability is a personal thing (incliding laws) international trading the same.
I have paid prices for collectable LEs that would buy many AIAs. The return on the AIAs in the short term particulary the 7.62 x39 would be greater.