I wholeheartedly disagree. E85 is totally worth it in a boosted application if it is readily available and the car is tuned/modified to run with it. I have DD'd an E85 car for the last 4 1/2 years. It makes way more power than it could on pump and has the safety factor of high octane.
2015 F150 4x4 3.5 Ecoboost
2002 Camaro SS, new turbo install in progress...
2005 Neon SRT-4, Big wheel stage 3, E85