I was looking at the Indian Wells draw today and noticed that the draw has completely opened up for Djokovic. His toughest matchup left is gasquet. Meanwhile, the other half has wawrinka, fed, nadal and murray. I think Djokovic at +150 is a great deal as he should have a cakewalk into the finals.
Once he makes the finals you should have a nice scalpable position or you can hold it and root for joker to win it all. I took it for 5 units so I would probably play back 2 or 3 at that point unless one of the big 4 does not make it into the finals