Do you guys think it's realistic to create and sell an online course using "whiteboard" videos, instead of recording myself on camera?

Hey guys! I really want to make an online course.

Unfortunately, I'm not handsome or charismatic, I don't think my face will do well on camera.

But I'm pretty good at art, I think I can create really beautiful videos in "whiteboard" style (like minutephysics or Verbal to Visual youtube channels, except prettier).

But there are a couple of issues:

• There's a limit to how long my videos can be, they can't be 1-hour lectures, realistically, I can make up to 10 minutes per video (but maybe it's good that information is compressed and I won't be wasting people's time?")
• Even though the whiteboard videos can look good, Im worried they'll be perceived more as an entertainment, not sure if people will pay for those.

What are your thoughts?