有意思的topic,我是这样算的.请地主们斧正:

	Mortgag Option			Cash Option
Down Payment	$                60,000.00			$  300,000.00
Income	$                30,000.00			$    30,000.00
Cost
Insurance	$                      500.00			$          500.00
Maintenance	$                      500.00			$          500.00
Tax	$                   5,000.00			$      5,000.00
HOA	$                   1,000.00			$      1,000.00
Mortgage Interest (3%)	$                   7,200.00			$                   -
Profit	$                15,800.00			$    23,000.00
Annual Return	26.33%			7.67%