After not winning lotto, again, last night, I thought to myself that I may as well spend my 'lotto dollars' (about $10 a month!) buying cheap shares in companies that will probably never go anywhere. Better chance of getting some money back (though not as much as powerball!) and might learn something in the process.
i suspect the 'something you learn in the process' would be that you should be investing in quality stocks, rather than gambling.
You probably get better odds going down to the casino with your $10 than playing the lotto too if you want to get a better, but still negative return. (i think house edge is about 2.7% on roulette from memory?)