IHG Rewards Club – the loyalty program for Intercontinental, Crowne Plaza, Holiday Inn and related brands — is offering a 100% bonus on purchased points through December 31. This applies to purchases of 7000 or more points.
At a 100% bonus purchases of 26,000 points or more cost just $0.005 apiece which is the lowest price I see them sell points for. Oddly purchases of 26,000 points is cheaper than 25,000 points because the cost per point drops. I believe the points are worth slightly more than this.