This is as good as the best offers IHG itself has had from time to time (which are in some cases targeted). In my approximately 12 years of being IHG member I have not seen anything better. I have read stories about 0.4c sales in the not recent past, but that has been quite a while ago.

However, the usual disclaimer: one would buy points only when one would have plans how to use them, piling them up is no good with dynamic pricing (unless one willingly wants to take the risk and wait for the next IHG IT breakdown to book reward nights at criminally cheap point rates)