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?
Percy Jackson and then Heroes of Olympus. It was frustrating to end the latest book and then have to wait a year for Rick to release the next one but they were undoubtedly worth the wait