Hiro competes with Koji, and maybe with DAZ's David figure, and is more expensive. Aiko, TY, and Miki all cost about the same for figure and basic morphs, but it doesn't cost anything to try Aiko with a limited set of morphs. (And an extra I'd strongly recommend for Aiko is the Kioki set from Capsces. With that, you might not need Hiro.) Whichever you choose to use, the suppliers of Poser content will be encouraging you to sell your own female relatives into slavery. Why do you think there are so many harem girl sets? :)