Villager textures

When I studied the texture pack files I found that when you are summoning a villager it takes the profession data and the type (biome) data separately and applies it to the villager. What I want to say is that if each villager of each type and profession gets a texture file of its own, there will be a total of 98 villager types which would be REALLY helpful for those who want to make an adventure map. This will help them add many different NPCs to their map with textures of their own, like pirates or merchants or merpeople. This way our adventure maps would be a lot more interesting. This applies to zombie villagers as well.