I forgot how much DC cost because I never look at the receipts.Actually, I'd rather not send via Media Mail because it has a high possibility of getting lost in the mail.
DDD sent via media mail for my WHR #3 since it was a pre-order. They had to resend because the post office lost the first copy.
I bought 4 sets of R1 on Ebay last mth. Sellers sent by media mail, I've only received a set, the rest, they are all lost or maybe never sent in the first place. I'm still waiting for my refunds on those but I doubt the sellers will refund since no replies to my emails or Paypal. Guess it's the credit card company to the rescue again.