To answer the original question, because there is a market still for the items.

It's a bit like asking why doesn't everyone use computers to make art instead of a pencil.

If they are happy using the programs and content for a certain character, then who is right to say that they shouldn't because something new has come along.

All the best.

LROG

Who honors those we love for the very life we live?, Who sends monsters to kill us?, and at the same time sings that we will never die., Who teaches us whats real?, and how to laugh at lies?, Who decides why we live and what we'll die to defend?, Who chains us?, and Who holds the key that can set us free... It's You!, You have all the weapons you need., Now Fight!