You decide: Would you rather the value of your home go up, or go down?
The appraisall board has very little to determin the price I can sell my house for. The market does that. They just determin my taxes.
Besides a much better fairer paln would be to do property evaluations like CA does. The taxable evaluation you pay is the price you purchased it for. It stays like that until you sell. That way you know what you are being charged.