What’s driving the price of all the Expedition lands? | tcgmode

I got the Mesa for around $150, the flats for $120, foothills $105, and Misty was like $220. I opened the Catacombs. I have all the other expeditions except the Tarn and Delta. They were on my list and then prices started going absolutely nuts. Is this all driven by pre modern? What’s going on he...