I have not bagged since 1991 when I bought a gear drive Toro with a 48" recycler deck. That unit was superseded in 1995 buy a 52" SD deck. The SD decks mow cleaner and faster than the dedicated recycler.
The main reason that people still bag it that their equipment just can't cut it. Or they are stuck in some time warp or maybe they can't admit they have made a $10k mistake when they could have bought a used walkbehind for $700 that can do a better overall job in ALL conditions.