I've spent a lot of time trying to hunt free range hogs in Missouri and it's TOUGH. I've never been successful. Because the populations are so spread out and food sources are so abundant, you basically have to be in the right place at the right time. Setting up bait sites doesn't work well because there are so many other food sources readily available to them.
As for the cost of Stone Creek, we get a group rate and book the lodge for the weekend, start Friday at noon and leave Sunday at noon, it's $500 which includes one hog of any size, two nights accommodations, and 3 meals (awesome food!). Guide service is included as well as tracking, dragging your hog out, skinning, and quartering. Hogs are kept in a walk-in cooler on site until you're ready to leave.
I found a lot of places around Texas that are cheaper and allow the shooting of multiple hogs. However, by the time you factor in the cost to drive to Texas from where I'm at (KC area) and the fact that you spend about 2 days just driving (I don't have a lot of vacation time), it was more cost effective to stay in Missouri and pay a little more. In the long run, it is probably cheaper and easier for me at least. And we have a good time.