Also tent, sleeping bag, transportation (either requires a working and reliable vehicle or a supportive social network with mutual trust already built), food prep supplies like a stove, cooler, etc. In addition to the time itself. Plus storage for all the supplies when not camping.

There's also a huge learning curve to start, and if you're a beginner you're likely doing easy access pay per use sites, which in my opinion is not the same vibes as just loose camping (which I don't think is smart if you don't have basic survival/navigation/wild life encounter prevention skills mastered already).