I was a kid in the 80's and had some cassettes of hers. But when I saw the Blond Ambition Tour, I became obsessed. Madonna was everywhere. Literally! On the radio (Vogue), in the movie theaters (Dick Tracy) and live on stage (Blond Ambition Tour). This is still my favorite era of hers.
With regards to the Erotica era, things were very different. I was 15 y.o. and still a totally obsessed fan but not everyone shared in my adoration. The thing about this era that I look back so fondly on though is how brave I was. Despite the backlash, I would always wear a Madonna tshirt. Once I wore a shirt that said S E X with Madonna's image in the letters to a baseball game! I used to always wear Madonna tshirts to the Jersey Shore Boardwalk! Hahaha. People would call me names and heckle me. I was called a faggot and everything. But I didn't care! Erotica era Madonna made me feel so empowered!