You’re also forgetting that cereals contain almost no vitamins or fiber, but avocado does. So, to make up for it, you should eat a salad to your cereals. Then calculate the price again. You will find (I guess) that avocado can compete with cereals+salad.
At some point one has to ask oneself not whether one can, but whether one should. Is it really worth it trying everything and giving your all for a company which will probably ditch you in the end, after all? I don’t think so. Don’t put in more effort than you expect to get as a result.