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I wouldn't be surprised if any lucky guy with a couple of dozen golden tickets might be able to win a Lambo in one of the future rounds. For example, the chance to win the weekly lottery even with 5k tickets is also close to zero but look at the last result. There are many winners with 5k or fewer tickets.
I know you can always win with just couple of tickets because after all its luck based but its just not to my taste. I'd love to win but I dont think I will ever so I'd rather take those guaranteed prize of 5k. Its just a matter of personal taste though and Im pretty sure most people will go for the 50 golden tickets because thats literally worth 0.0125 btc
Btw, your chance to win the lambo with 50 golden tickets is around 0.006% and this is with the current total tickets amount.