I guess you never deal with AMT issue in the past

That is why you are keeping talking about Depreciation. The fact is, many people could not take any tax deduction on any Loan interest expense or any depreciation expense due to a higher income.
I knew you are able to take the tax benefits and you love your work or you prefer to invest in the house market, that are all OKs. however, you also have to be with me and listen to others in the discussion and understand different tax situation first.