I started playing MTG when ice age came out. Sold all my cards back in 2018 for $13k. Most of that was from having all the dual lands and fetch lands. Also had an original foil tarmagoyf
In defense of the ~8 year old me, who had no clue how to play the game and just liked looking at the fancy cards, no one told me anything :) Also, that was around the time Urza's Saga released so it really was wayyy less expensive at that time.