My default reaction to 1) is that I dislike it. I feel like the incentive to labour to accept the tax of unimproved land value instead of property tax is the removal of income and sales taxes that accompany it. Taxing unimproved land value instead of improved land value in a system as close as possible to the current one feels like a massive wealth transfer from homeowners to condo developers. As it is, condos represent a problem for many communities in that they are often taxed at lower percentage rates and have a lower market value than houses. This means communities consisting of more condos have lower tax revenue per capita compared to communities consisting of more houses. Suburbs resist densification because the decreased revenue per capita generally means declining services. I think this a fundamental cause of NIMBY that largely gets ignored.