I spend most of my money on books. I rarely ever spend money on anything else. Living as a kid with my grandma had a huge impact on things I did in my later years. We were poor but always had access to books.
I did that until I felt like I had collected enough books to last me a lifetime. Once in a while I'll still order one that has good information on a topic I am passionate about. I have eclectic tastes and libraries usually don't have the information I need (outside of a particular one in Santa Fe, far from where I live).
One problem for me, living in Denmark, is that all the books at the library are in Danish. I prefer to read books in their original language, or at least in an English or German translation, which are usually markedly superior to the Danish translations.
If I want a book in English, I either have to special order it at the library and wait for a week to get it, or I have to buy it myself.