I've got ~220K MR, ~57K SPG. I'm thinking about that sale (that ends in 24Hrs) where 5K SPG is ~$114 (and 6K ~$137). I don't have any planned redemptions before 8/1, but 15K (or 18K, depending on what I hear here) MRs doesn't seem like a bad deal for the price, considering I couldn't get that many MR for a room at those rates.
But, I'd figure I'd check with you guys first to see if there's any cons to this I'm unaware of or forgetting about?