It's purely selfish, I'll readily admit: I now get through the Weston tolls a lot faster.
See, so many people now have transponders that they queue up something fierce at evening rush trying to get onto 128, because they can't use the lanes still staffed by actual people - of which there are typically at least four. Me? I'm a lazy cuss and I don't have a transponder. So all I have to do is weave in and out of the stalled transponder losers and get myself to one of the manned booths and I'm outta there.
Actually, even getting on the turnpike at Framingham is usually quicker for me than for the FastLane slowpokes for the same reason.