Cats in the Cradle was probably Harry's biggest hit, and even stations that wouldn't play Taxi because of length played Cats when it was in the top 40. But I think Michael's wrong about WABC not playing Taxi. It was their #97 song in 1972, debuting on their 5/02 survey at #16, then after a one week pause it went to #9 on the 5/16 playlist, was #12 on 5/23 and #13 on 5/30, after which it was gone. It just took longer than normal for WABC to add it to the rotation, and it was probably dayparted to evenings, weekends and overnights, except when the day-shift jocks needed a bathroom break. Keep in mind that WABC was the station that broke Richard Harris's 7-and-a-half minute MacArthur Park, so they weren't militant about avoiding longer records. And in 1972, their #2 hit for the year was Don McLean's American Pie, at 8:42, which might also have affected the thinking about having another atypically long song in high rotation.