i got the package at home.. it looks promising for sure. You still will have to print the cards per the specs and drop of the cards and the post office takes care of it... So 5,000 postage is $750 , 5000 color postcards about $200. Roughly $1,000 to send out 5,000 post cards.
Another idea i thought about was getting a giant postcard 8X11 which would cost about $700 for 5,000 cards, Postage is still same rate at .15 cent per mail.
So figured i could sell 4 ad spaces in back and 1 big space in the front to some of these local businesses. Sell them for $400 and $500 for the big side. Could easily profit $500+ from this method