pretty much any public lands in pheasant area's can be cheap to hunt, if you do your part !
I have hunted SD on DIY type hunts many times for prices few would believe , but again, it comes down to how much effort you wish to put into finding deals!
this means you making phone calls, and talking to a lot of folks in pl;aces you are willing to travel to.
IS there a certian part of SD your more interested in