I once worked at a startup, and a few times they ran out of money and paid us in stock (they were public). We were only allowed to liquify 20% of it each day, so it would take a whole business week to get all your money. In return for all the hassle, they bumped our salaries 20% those pay periods. And if we could show we hadn't earned our salary because the stock had decreased, they would give us more stock to compensate. What a hassle, but one time the stock took an unexpected upturn and I ended up banking 5 times my normal pay!
Gotta tell you, though, explaining all that to my tax accountant at the end of the year was an unholy pain.