Tuition is crazy across the board- whether undergraduate, graduate, or some type of professional school. It is a national problem, not just a problem with optometry. The tuition is going to keep on rising until the underlying problems are fixed.
That said, once you get out of optometry school, if you make the right decisions, you are going to be living a comfortable life. Your bank accounts are not going to be overflowing, but you will be able to live and raise a family, etc. I chose this career because I want to have a career in something that I am passionate about and can enjoy. Could I go get a master's degree and save a ton of money and possibly end up making more than I would make as an optometrist? Sure. But I wouldn't enjoy it as much and I don't want to spend 30+ years of my life in something that I don't feel is right for me.