Well. With additional tickets from guild bonus I do get justifiable profits out of slot machine by the time. Just never buy tickets, just use what you get free.
I think my wins have totalled atleast 5000 clintz - without single clintz used.
And 3 oscars do happen- but as rarely as real life jackpots. I think if you pushed something like 500k clintz to slots you could have meaningful chance to see Oscars happen.