Is auto detailing an expensive hobby?

I think that yes, it might be an expensive hobby. You have to buy wax, polisher,detailing clay, compound, the swirl remover, and all the car cleaning products needed.

It can be expensive since you have to find the right products for YOUR car and paint. There are ways to get sample products to test on your car such as by going to conventions or joining services like DetailBox (see related links). If you can figure out what products work well, then you can make sure you won't purchase a full product and end up wasting it.