I think I've not visited a public library since I first used Amazon in 2001.
While studying I've used the university ones a few times, but I've also always preferred to buy my books if they were important enough to be read thoroughly and repeatedly.
On the one hand I'm kinda sad about this, on the other hand I like to own and revisit the books I read.
Funny, I do the opposite. When I find a book on Amazon, I'll see if it's at my local library and if not put in a request to have it shipped from another library in the same system (in my case, that system covers a number of nearby cities and towns).
If I can't get it for free from the library then I'll consider ordering it from Amazon.
Another advantage of the library is you don't accumulate more and more books over time, unlike if you buy them.
While studying I've used the university ones a few times, but I've also always preferred to buy my books if they were important enough to be read thoroughly and repeatedly.
On the one hand I'm kinda sad about this, on the other hand I like to own and revisit the books I read.