That's is Het Hypo and wasn't a Hypo. Hypo are above het also will have very nice and sharp color compare to het.
Why expensive? we will quarantine our reptiles and bring to vet check to verify that all the dragon are free from parasite. We're selling healthy animal to buyer and wasn't a sick animal. Bearded dragon always look healthy even they infected with Coccidia & pinworm.
I would advise you to Google and search more information about the dragon.