The cheapest (Early Bird) rate for passes to this year's Winnipeg Folk Festival is only good through May 31st. Tix are $70 US, though if you've got a group together you can get 'em for closer to $60 US.
(Someone was snickering about the "folk festival" when it came up, until I mentioned that there are many other kinds of music represented at the festival and that for some of us it's sometimes more about camping and socializing and whatnot than the music. Though I dig the music, too . . . ).