The young ones should look just like the adults when they grow out. Some wild adult fish (like blue heckel discus, for example) will fade after they are imported, most likely because they're not getting the right combination of diet and water parameters, but otherwise I've never known young wilds not to reach the same potential as adult wilds. My psittacus came to me at thumbnail size and they still grew into beautiful blue-green fish. The key is keeping their water very clean. A happy, healthy parrot will be a colorful parrot.
That price is a little high but by the time you pay shipping from a vendor it works out to about the same.
