Please address the automatically allowed 10% increase to your taxes every year based on the appraisal being raised. I guarantee you in the last 3 years, most people have seen their actual property taxes increase by a larger amount than the income tax deduction would have provided.
Another senario. Take an amount say $50,000 as spendable income. Spend all of it and tax it at 4% above the current rate of 8.25%. That would be equal to $2,000 in extra sale taxes for the year. Now compare that $2,000 extra sales tax expense to the current property tax you are paying. Which would be better for the indiviual. I bet most people would come out ahead with a higher sales tax. jmo.