I got one today in the mail for 20,000 miles after the first purchase and an additional 20,000 miles after $5,000 in purchases.
I'm actually kind of pissed because I already got the card a couple of months ago and got $75 off the $300 (plus 7,500 miles as part of the mileathon promotion).
I definitely would have preferred paying the $375 and getting the 40,000 miles!