To actually buy such a system would have cost somewhere on the order of 13-18k before the various tax incentives and credits (the biggest of which is the 33% Federal tax credit). We are jumping at this now because the future of such tax incentives is likely to hinge significantly on the election.
however, if the election goes another way, you'll be able to install an uncontrolled oversized subituminous-burning boiler to provide you steam and electricity!