It probably cut production costs to some extent as well, which I would imagine, was the main drive behind it.
That, and emissions. DBW holds the throttle open instead of snapping shut and momentarily spiking the mixture when you let off the pedal. Which you do because, you know, you'd like to actually slow down.
1988 CVLX Formal Roof (Love Boat) POTM July 2019 & Aug 2020, 56K
E-code lights w/ relays, LEDs w/ switchbacks, 15x8 Ansen slots w/ 255/60 BFG's, Kenwood stereo, various hacks.