The cost of ACA coverage varies wildly depending on where you live and your demographics.
Our 94% AV Silver plan in Texas is less than $45/mo this year with no copays for visits/meds and a $675 ded/oop. However, our insurer has a cash rewards program for things like getting a flu shot and an annual physical. Maxing out the rewards program means we're actually going to get paid about $450 to have insurance this year.
So be sure to check all the options on your relevant ACA exchange. You never know what you might find, dependent on your particular situation, of course.