In his Meditations, Marcus Aurelius wrote, "Look at the past—empire succeeding empire—and from that, extrapolate the future: the same thing. No escape from the rhythm of events."
The philosopher and Roman emperor surely wasn't speaking to the rise and fall of ticket prices of Bay Area sports franchises—but the logic is mostly true, and there's a decent chance you're impressed by a Marcus Aurelius quote.
In any case, the San Francisco 49ers are really good and their tickets are way more expensive because of it. On the flip side, the Golden State Warriors are really bad this year and their ticket prices reflect that.