Iderooy
Given your pen offers greater functionality (specifically using to write digitally) and looks professional (custom body rather than retro-fitted marker) I don't think the cost is too expensive.
Once you achive economies of scale and improvments in manufacturing technique hopefully the cost can drop and you will be able to sell more.
I think you will need a video or something concrete to prove your pen is superior to the switch variety if you want success at that price point.
Benpaddlejones
