Would you sell them for 100?
There is no way I can go that low.  I am certain to get more than double that from a different buyer.  They are sweet!
I suppose it up to you to decide how much your time is worth.  Who knows how long it would take to get your asking price, They are a niche item, not too many buyers out there.  I could go up to 120
I agree that they are a specialty item, and that makes them work at least $200.  I just posted this ad and haven't even shared it with my friends at the club.