Starwood Preferred Guest is currently offering a 20% discount on purchasing Starpoints. Starpoints normally sell for 3.5 cents a piece. This sale takes them down to 2.8 cents per, and is valid through December 14th.
While I consider Starpoints one of the most valuable currencies in the mile and point world, this is probably a bit too high of a price to pay unless you have a very specific need for points in the near future. I’ve definitely gotten better than 3 cents worth of value out of Starpoint redemptions in the past, but generally value them at around 2 cents a piece, maybe a touch more in some unique situations.
The limit for this sale is 20,000 points, so any way you look at it, you can only gain or lose so much. 🙂