I don't remember but I did the math at the time and it was cheaper to buy the ticket then to use the miles. It wasn't a lot of money.
If I remember correctly, the award was not available on BA where it would have made sense, only on AA and AA wanted more miles which didn't make sense to use.
I did however use my BA number more to extend my expiration date on my miles but did get some miles also from this trip.
In addition, because we specifically wanted the first flight out Sunday morning we didn't want to wait to see if it would become available on BA and wasn't an expensive ticket that worth the risk of waiting and then maybe paying more to get on the flight we wanted.