A few years ago, I spent most of my savings on The Lunar Chronicles by Marissa Meyer (Cinder, Scarlet, Cress, Winter, and Stars Above; I didn’t get Fairest), read them all, and loved them…though I didn’t reread them and sold them some time later.
And what was the first series you spent most of your savings on?
Gallagher Girls by Ally Carter or the Warriors series by Erin Hunter when I was younger, and the Throne of Glass series by Sarah J. Maas more recently