I'm on the fence when it comes to quality vs yield. If I'm selling it, I'd push quality first, nd attempt decent yields as a secondary, but for me personally I'm a pure habitual smoker more than anything so 100% quality isn't too important for me.
For example (if personal) id rather get 8 ounces of mids at 15% than 2 Oz of super heady shit at 25% as I don't really notice a difference between average weed and fire weed as I'm mainly smoking to go to sleep straight afterwards and fill a hole created by habit. I can definately tell shit weed from average weed, but not really average weed to straight fire. I'm easily stoned lol.
But once I put a monetary value on it, and it's for others consumption my morals push me to try and provide a good standard of quality as well as comfortable yields. But I'd rather sell my mates a qp of fire than a p of schwag.