At my club, we get charged 25 cents/target thrown on Sporting. The nice thing is that we're given an electronic counter that you plug in at each station. You can shoot the course as set out (sequences of singles, reports, true pairs, etc) or just fool around, which is what most of us do, shooting each target or pair until we either understand it or, as is often the case, decide they've loaded the armored targets and give up. At the end, you present your counter and pay. You even get credit for reported no-birds. You can get a puller if you like, but the duty usually just revolves within each group. If you're alone, there's a delay feature, but it's too complicated for me.
We also have GREAT lunches for under $10, which is the best bargain in the DFW area.