I can forgive some planets being boring if they're a spectacle. Tidally locked planets where everyone builds on the equator because the sunward side is too hot, and the far side is too cold. Mercury supposedly has pools of frozen water at the bottom of some of its deeper craters despite cooking the whole time. The atmosphere of Venus is so dense you could make a floating cloud city on the middle/upper layers. A hollow planet. Ocean worlds. Worlds with a toxic atmosphere and people only live on high mountains in the breathable layer.
Hopefully they'll know how to make planets with more than one biome (desert planet, ice planet, forest planet...blech).