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Are lottery tickets ever a wise investment provided the jackpot is large enough?
I realize that most posters are US based, but the UK on Saturday had its biggest ever payout (a miserable £60m). Because of the rules there, the estimated "value" of a £2 ticket was between £3 and £5. http://www.theguardian.com/science/2016/jan/09/national-lottery-lotto-drawing-odds-of-winning-maths