... are not possible. Too many conflicting theories.
If my identical house and my neighbor's are taxed differently, it is unfair. Clearly.
But, if my neighbor is 72 on a fixed income and has lived in the same house for 47 years, why should his property taxes rise because I moved into the neighborhood and built an identical house that is valued higher at today's prices. That was the original reason for the cap.
Of course if he and I, for some unfathomable reason exchange houses, we both "pop-up" to current fair market valuation. How is this fair?
What has really changed from a day ago?
If I pay $150,000 for my house on the valuation date, shouldn't that be the evaluation? No, because that would be "price chasing" so the assessor uses some factor in the county to say that it's really worth $160,000, or $145,000 or whatever.
Besides, home valuation changes constantly. What amenities, environment, neighborhoods, traffic patterns, schools, businesses, all go into the mix to change valuations. How can I come up with a reasonable tax based on constantly changes tax bases?
Or a farmer be priced out of his land by property tax valuations based on new subdivisions that might be built if he should sell? That's the current use/best use argument.
Or the rationale for property taxes: local services. My neighbor has no children. Why should he fund public schools and not receive the same benefits that I with my 12 kids receive?
He's a radical environmentalist. He creates no waste, recycles everything including his trash. Why should he pay for county garbage service? He's already paid with expensive recycling projects. He drinks water from his own pond, and composes and has his own waste treatment processor. Why should he pay for county mandated water & sewage lines that he doesn't want in the first place?
Laws like this are the inevitable see-sawing balancing of one interest group ripping off another legally.