There no one way to get into racing. I’ve raced with people that have gone out and bought everything brand new. Then after couple races decided it wasn’t for them. Personally, I’ve gone the used route. Nearly all of the 8 classes I race my car is used.
Also depends on what class are run. Couple I run at have a very consistent RTR class. Most I’ve been to the entry class is hit or miss. Most pick a buggy or SCT class to start.