I use the terms kennel and crate interchangably so thats why I was confused.

I have one large wire crate and about 15 travelling kennels of all sizes (most from the shelter since I foster a lot). My dogs aren't crated anymore but the kennels and crate come in handy for all the fosters. Some dogs are better in the wire when they can see out and others like the crate because its darker.

I personally like having several options to choose from.