Another "Is Fuel Injection a Worthwhile Upgrade?" Question

Interesting comment that FI is only about emissions and fuel economy. Totally ignores the fact that since MPFI has been broadly used in new car production there has been a marked uptick in motor performance, across the board.
I don't credit the fuel injection as much as I do the computer controls. I strongly suspect that accurate fuel metering and spark control have allowed an engine to make more power.