I'm not going to go into details for the purposes of anonymity, but I took over a website that is a resource for a community I'm very involved in in order to prevent that website from being shut down. It costs me money to keep afloat, but I keep it afloat to maintain it as an entry point for the community. It does come with some fringe benefits that probably makes it worth paying for as well, but "worth" is very subjective here.

It makes a little revenue with ads and Amazon referrals due to the traffic volume but it operates at a loss.