E) In the USA, if it's your residence, it's a taxable event for the capital gain, which can cost 6 figures in federal and state income taxes in a place like CA.

E) In the USA, if it's your residence, it's a taxable event for the capital gain, which can cost 6 figures in federal and state income taxes in a place like CA. Plus, in CA, until this year, you usually lost your Prop 13 basis forever.