When you enter the website for TX parks it does show a place that tells about the park pass. If you also look at the fees area on the park you want to stay in has enterence fee & campsite fee. I do understand if paying for a campsite why pay an enterence fee on top of it. It is still a better deal than some private campgrounds, even without FHU's or cable or wifi. We stayed in OK at a state park not knowing what to expect as of last year they had no resveration site, it was find out once you arrive. I have learned over the years either to call the state we are visiting or dig on the website, some of the sites can be like putting a puzzle together. Most of the time I will ask an out of state visitor about their state parks system as they stay in ours. Like the campers we met in OK on our visit & in return I gave them info on TX state parks.
Sharon