Timed matches make the biggest difference here. In this area we have some leagues that do 1.5 hours, and some that do 2 hours. Ive found a typical close match with a third set tiebreak takes about 1 hour 45 minutes. The hour and a half matches get timed out all the time- and winning a match on time just sucks. Even with two hours, if we had to play a full third set it will usually time out. The 10 point tiebreak is the only way to finish the match in time. In a tournament, its different because there is usually not a time limit. So playing a full third set makes sense.