A good music teacher actually cares about the student. They look at you and see an individual, your potential for growth and what you can become.
They listen to what you want to become and guide you. They don't view teaching as 'just a job'. They actually want to make a difference. They give their all, they try to do their best, they impart their experience and guidance.
When you want to invest in lessons, would you want the best for yourself or just someone who can sort of teach? It's your choice.