If you asked some friend of yours, in a tight corner, to borrow $100 and they gave you a lottery ticket that might be worth $100 once you scratched it off and redeemed it, you possibly would be forgiven for punching your friend in the face, although the sort of person who did such a thing would feel very offended and like you'd been ungrateful. After all, the lottery ticket has potential value: if you add up the various possible payouts of the lottery ticket weighted by the probability of those payouts, you'd arrive at an expected value for the ticket that would probably be well under a dollar but still not zero.
If you were given a big stack of such tickets, in other words, you'd expect to get a certain number of dollars out of the stack: the expected value of each ticket alone, multiplied by the size of the stack.
But in the here and now, there isn't a stack of lottery tickets but a single one, with a tiny expected value. Most likely you'll get zero dollars from scratching it off.
(cont'd)