costello resides in ottawa with his wife denise, and they have six children. they met while attending school together in windsor, and spent their honeymoon in seattle, when he moved there for work. costello was on the board of directors for the hockey hall of fame for 17 years, and was also on the selection committee. he has also spoken out against the rising cost of minor competitive hockey, calling it an elitist sport. costello himself was able to reach the nhl coming from a poor background by using hand-me-down equipment, but he fears that "hockey is becoming an opportunity only for the people who can pay their way in", and suggested a return to wooden sticks for minors.