I recommend ordering directly from Black Dog Machine. BDM has both the smoke and black in stock.
Their shipping is less than Midway, at least for me in Texas. Very quick to ship and good customer service.
Also they run 10 to 25% off deals from time to time. I got some like than during Labor Day.
In addition, if you're military, veteran, or LEO, BDM has 15% off discount, which you can stack with their holiday deals. I scored two at the end of August for $32 plus $7 shipping, which worked out to a 35% savings. Not a bad deal.