I was heading home from Union Square, and realizing that all the Broadway trains were running via the tunnel, I took the arriving uptown

instead to 34 Street–Herald Square before transferring to a

that came a few minutes later. The

going up and waiting for the

probably cost me a few minutes (since there was an

to Coney Island at the same time I boarded the

), but there's always the psychological satisfaction of going the long way just to skip a bunch of stations.
According to the MTA's schedules, it takes anywhere from 11 to 13 minutes for a train to get from Atlantic Avenue–Bayclays Center to Canal Street (or the other way around). The same trains via the tunnel takes 17 to 21 minutes.
How far would you go to avoid that tunnel detour?