Another data point - no email 10 days out from not retaining SG (150 SC short, and lots of DSC and Green Tier to even get that close). Dropped from WP the year before. Have lots of flying, including US domestic before hitting the regain, so worth it to retain status. Called up, put on hold, and given the 80,000 to retain offer. Warning that it was a once off. (The other consideration in the value here is that failing to retain would reactivate QP membership and run it down, but by retaining, should end up hitting LTSG before dropping again, so can convert what doesn't get run down back into a refund eventually, so some eventual $ return for the points as well - plus no better ancticipated use for the points in the near term).