Since average home price is $500k but real cost or worth is only $150k, the rest is useless, wasted mark up, banquers gain.
Imagine that that $350 k wasted now you did invest in such passive and safe investment as solar panel on your roof.
at $1 per watt that give you 35 kw electric power on your roof !!
Income, at 40 cents per watts most of us will be paying for electricity is:
5kw per day x 35 kw x $0.4 x 365 days per year = $25,550 per year
not bad profit for doing nothing at all