I'm going on A road trip {all the way to the other side of the strip} this weekend and will be going into my local Hobbytown so I will see what they have in stock and how much they get for it. For 11 bucks A jug I don't care if my engines like it or not, I will force feed them!!!
I once tried FAI in A couple of two strokes. Once tuned for it they ran OK. I never did try it in A four stroke but I don't like to fool around with them very often just for fun, they run just fine as they are.
FAI is cheap to brew up though and works quite well. If prices do go up too high I can see A lot of guys brewing there own again.