I'm lucky to live in a county with a good library system that supports this model, but what about the rest of the country? Are they all served as well as me?

I'm lucky to live in a county with a good library system that supports this model, but what about the rest of the country? Are they all served as well as me? $10/mo doesn't seem too outrageous if you have no other alternatives. If you are a heavy reader then this makes sense vs. buying from Amazon or another retailer. I suppose it comes down to strength of library - for $10/mo, can you match other book seller's content? I took a look for a few books I've been reading recently - it seems about a 50% match. Personally, not for me.