If I was flying my husky into a 600 ft obstructed glacier runway while hanging on the prop like Doug Geeting of Talkeetna Ak...an aoa over a storm scope could make sense.But I donot fly into glaciers very often(I did it once)I do how ever fly IMC quite a bit..since my Mooney doesnt have onboard radar my stormscope in cell mode along with the 5 min old XM nexrad is all Ive got to confirm a bumpy cumilo nimbus.Where there is lighting ,there I am not.Not having an AOA in the Mooney I do not miss at all.I once owned a maule m5 with a safeflight aoa that I nevered used simply because when you are low and slow with the stall warner blaring in the background,the last thing you are looking at is any panel mounted instrument.My attention was completely taken up by trees and rocks,wind riffles on water and screaming passengers.