I think someone should make a site... where people can go watch free porn. Large amounts of free porn. Then, once you get them hooked on all the free porn they can eat... Give them more free porn. Maybe throw in a free car... Pay their rent for them... Feed them. Basically give them everything so they become dependent on you. Get ALL of their information over time. Name, Email, Address, Phone Number, Next of Kin... Get them to write you into their wills and leave you everything and name you the beneficiary on their insurance policy. Maybe even take out your own policy on them.
Then... Sell them to the highest bidder. Maybe for slave trade, or to use for human materials... Whatever the case is, sell them for $200k each. Do this before they spend $10,000.00 of your money.
$200,000.00 - $10,000.00 = $190,000.00 profit per person sold (PLUS the insurance money).

