I agree with Johnny & Jantz. I like them alot, going back to Johnny's "snowflake" term,,,,,it makes the card a little more unique. As far as a premium, it probably boils down to who is wanting it and what someone is willing to pay. I think over time WST will become more popular and if that's the case, they may command a little more $$ (and, no, I don't own a crystal ball
).
Sincerely, Clayton