I have enjoyed camping alone (by alone I mean with my SO, so far have not camped by myself completely yet but would not object to it) as well as in a crowded area. Honestly, I like both scenarios, as both have pluses and minuses for me. I like the solitude sometimes, but there are other times I really don't mind the crowded CG's as I also enjoy some nightlife and still like to stay up late and don't get irritated by noise past quiet time (within reason. people up late partying and not being TO obnoxious is one thing but if the dog is barking incessantly all night my nerves will be seriously plucked!). CG's with more people do open up more situations to get near a clueless neighbor whose behavior can get downright egregious at times, but so far in all of my many years of camping the times that I can count where I had a neighbor who was downright obnoxious and belligerent can be counted on one hand and not even use all the fingers.
Camping can come in all forms and the cool thing is there is a venue for virtually every choice.