The cost of a handler is not all that high. In my case, it was my first show and dad never went to conformation classes. Sure, we did obedience, but this was totally different. A good handler will give the dog confidence. There is that feeling you know what you are doing.
Many people get their enjoyment out of being in the ring, showing their own dog.
Some can't understand why someone else should do the handling. I say, follow your preference, then enjoy the experience.