Yep its whether or not you value it enough to spend more. If your happy with bud craft beer is a chance to charge 50-150% more.
Ouch! I like how you did that, but I think that's a false analogy.
If Budweiser made a beer that tasted just like Chimay but was half the price, I'd be happy to buy it. They don't.
I can't really tell a difference between organic and non-organic produce (beyond price). So the benefits are something I have to take largely on faith.
I would bet that organic yeast will perform exactly like non-organic yeast and under a micro-scope they will look identical (assuming the same strains of course).
So, if you're sold on organic yeast the reasons are not because the yeast themselves are better but for the intangible benefits of organic. At least intangible to me.
So... it's a reason to up-charge.