Seth Davis at SI thinks now is the time to buy Purdue:

"Purdue (8-5, NR): BUY

This one is worth a flyer, because the Boilermakers’ stock could hardly be lower right now. They just lost three straight, including one at home to Gardener-Webb, but perhaps that’s to be expected from a team that has two freshmen amongst its top three scorers. Beyond its youth, Purdue’s main problem right now is poor defense, but it’s hard to believe Matt Painter can’t get them to improve in that department. Purdue probably won’t make the NCAA tournament, but it will get better, so this is a smart little bet."