Yes, I think there should be pressure to either use it yourself (if you decide your personal utility is worth the cost) or to rent it out. You can still leave it empty, of course, but people do respond to incentives; the more the maintenance costs, the more incentive they will have to either use it themselves, or rent it, or sell it. One of the major problems is that many of these properties currently sit empty as a store of wealth - like a safety deposit box - for overseas owners, which causes problems for the community.