Look them up and look at he parks you might be interested in. The information is available to see on their website. Each park is different. I would recommend checking out some reviews of the park, but then again you can't believe everything you read.
The Wynns just posted on Facebook that they had read that a fairgrounds rv park near Denver was nice with WiFi, full hookups, and affordable rates. They posted a picture and it didn't look nice. I imagine with their posting that the rates didn't seem affordable for what they were getting. They said they got burned. Lol