The Forester was another popular SUV from the 1990s and early 2000s. While the Subaru lineup is mostly known for the Impreza, there have been other popular models. The Forester was popular because of its compact size and reasonable versatility for the price tag. The problem was that the early generations of the Forester were not that reliable. There were recalls related to the timing chain that Subaru addressed years later (via Hot Cars).
The Forester was a decent sales success for Subaru, but dealing with the headaches of the maintenance was no fun. The Forester was also the victim of the recent “trendiness” of owning a Subaru. There was a certain subset of people who own a Subaru model now, and it has driven the prices up. There was also value in owning an older model Subaru, but that was no longer the case.