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?
The Robotech books by the Jack McKinney. Complete trash but I wanted to relive the series as it was off the air. Thankfully they had a lot of boxed sets.