The Amazon link you posted is selling them new for $8.49 USD.
1 BTC is now $12 USD
So, I guess I am asking is your price firm?
How much is shipping to USA lower 48 ?
Amazon:
$8.49
+ $5.95shipping
Is that the same price delivering to you?
Shipping for Germany is about $5 it looks like.
Shipping in U.S. is maybe $2.50
Depending on location I'll adjust prices, mayhbe 1.15BTC total for you at today's price