In my opinion: Market-place assets are only good for testing / populating scenes and SHOULD ALWAYS BE REMOVED/REPLACED before finishing production.
With that said, the more your package can do, the better. There are a lot of folks out here that will buy more saturated packages than small packages. I would not try to compete in the character model market because Fuse is practically free (it costs an adobe suit sub). But if your character can do more, or at least fit a specific need, then your asset becomes valuable.