Why is yoga pricing itself out of reach for many people?

It's scary and I'm starting to be disappointed, it reach to a point that you don't want to have a personal teacher to start you up anymore. It supposed to be a free teaching but well as everything gets "In Vogue" and more popular, the higher the rates....how to escape from all this and seek a good teacher that main goal is to transfer his/her knowledge with nothing or a bit in return? I'm scared and don't know if paying the big bucks for a good teacher is worth...There are good teachers that are charging a lot with a lot of students...Just because they have years of experience, travels, readings and reputable teachers in India or so it means they have be so greedy? Patanjali book teaches something different. Haven't they read and learn about service? It just make them distrusted.