If you didnt get the coupon from steamboat, I wouldnt fuck around...  it might mess up your order when it isnt paid in full.  Bump you to the back of the line, OR not get your order at all till its paid in full.  Steamboat has enough to do matching up our chip orders with assembly orders etc....  do you honestly want to fuck with possibly not receiving your miner over 10% off?  10% is prob all that he is profiting from your order to begin with, and for the headache that he is going through with all the logistics, he deserves that at least.