Huh... the problem there is that the chances of victory are comparable with those of real lotteries. However, the number of people playing is immensely inferior, even if we started buying multiple tickets each. Chances are that winnings will be extremely rare.
Speaking as someone who was *cough*Going to weight the odds in their favour*cough* I can say you can't buy multiple tickets Which is a shame back when the minotaur king was worth 800 gold a pop I could have easily bought a thousand tickets.