I probably had 6 or 7 NW flights canceled this year- either FNT>DTW or vice versa or LAN>DTW or vice versa. Each time I opted to rent a car and just drive to FNT or LAN, or to DTW to catch my flight to PHL. Most were canceled due to mechanicals, one was due to weather. I tried to explain that and asked if they could make an exception and add a segment, but no such look they said that they were not making exceptions to the program at this time.
I was supposed to start a project in AZ next week which would have put me over the edge, but the project is now delayed until January.