Near-mint copies currently trade around $3,400, with high-grade slabbed copies running considerably higher
At the end of the day, they dont, as throughout Magic: The Gathering history, there have been many lands printed across sets where you can choose the one you need according to what your deck wants
It can be 5-year-olds, it can be 60-70-year-olds
(I also love that artwork too!) Oh, and this was true of the first Portal set as well as many strong cards from it were reprinted almost immediately, like Gravedigger, Thundermare, Alabaster Dragon, Raging Goblin, or Natural Spring as well as draft standards like Mind Rot, Volcanic Hammer, or Breath of Life which was a cheaper version of Resurrection in White, and then others that were reprinted here and there later, like the afore-mentioned Ebon Dragon, or Endless Cockroaches and Gift of Estates
Impressive sorceries and instances, along with some of the strongest creatures in the set are all based in green