1) IMO, all self sustaining California residents should try and insulate themselves from California's overspending. Prop 13 is a means to accomplish that, which is the very reason California's current political orientation wants to abolish it.
2) When a person buys a home they know how much the property taxes are and budget their home purchase accordingly. Maybe...
In states without Prop 13, how can a person budget home ownership costs when property taxes may double or triple in just a few year's time because a bunch of wealthy California or New Yorkers move to town and disrupt historical home prices?
Remember when there was a proposal to tax unrealized capital gains on stocks still owned but not sold? Remember Wall Street's uproar over that? Isn't taxing a homeowner based on unrealized gains on a home they aren't selling the same thing?
Scott
There aren't many things that California's gov gets right, but prop 13 is definitely one of them IMO. It's exactly like you said, protects the owners from being taxed on unrealized gains.