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Sure but you forgot to consider the odds of winning the raffle itself. So far the odds for winning Option Five Raffle would be 1/28 but if a voucher was under $1.00 USD the odds of winning a voucher would be 1/3 (only three upvotes qualify for Raffle One so far). More upvotes are likely to come in so those percentages will vary.

Didn't forget, it just feels insignificant. Best case, 1/3 of $1 is 0.33. Sure, 6/29 (current upvotes and worst case scenario) is $0.21. But if I now vote $1, and it best case is $1, that's $0.25. And that's best case. As opposed to worst case of $6.