Like many I have always suspected cartel pricing or some dodgy agreement on glasses, I never realised it is because of a monopoly.
You can go to Lens Crafters or Vision Works and pay $400-$800 or more.
I've bought some online from LensesRX... single vision with bendable titanium frames... for ~$65. (Similar frames alone from an optic shop can be $250 or more.) I'm rough on glasses... with dogs knocking them off of my face and all. The titanium frames are lightweight and durable.
You can even pay much less at other outlets, but probably not with "bendable" frames.
Don't be stupid. Whatever you save on eye wear you can spend on hookers and blow!