Just spoke with Adam Zacks with Sasquatch today who mentioned they're "nearly sold out all 3 days" of the festival. I wouldn't be surprised if all the tickets are gone by the end of the week. If you are planning to go, I recommend BUY YOUR TICKETS ASAP.
As I wrote in my column this week: "The lineup is pretty fucking outstanding this year, probably the best the festival has ever had...I'll be shocked if this doesn't sell out, so buy your damn tickets already."
Update: Ashley Graham at LiveNation confirms:
We are having record sales to the tune of 27% higher than previous years and are fast approaching sell out on all 3 days. That said, tickets are absolutely still available for the time being, and I encourage those hoping to attend to make their purchases NOW!