@ChecklistChikorita asks
people say rotation might affect demand. What does that mean for someone who only collects?
Jeff answers
Some organized-play formats change which sets are eligible, so player demand for certain cards can change. I'd check current official rules before drawing conclusions about a particular card. Our app helps with the market reference, but collectible appeal and gameplay demand may move differently. One rule change doesn't explain every price.
— Jeff, infinitepulls.com