So i have been checking stores for Just Mayo to see how widespread it is. Found it today on the normal mayo unrefrigerated shelf in Publix, local big grocery chain, for $4.99/quart. The Hellmans was $5.29. Unfortunately, they had a Buy one, get one Free on another egg mayo, $5.49 for 2 quarts.
The Just Mayo did not get great shelf visibility compared with most of the other mayos, but not the worst, either.