Ours are another source, and ours are actually a higher hate rated guaranteed to us, but we put lower on the can because we want to under promise and over deliver. I doubt most places are doing their cold storage correctly because its quite costly and in general, the cost of eggs has gone up a decent amount over the last few years. We pay to get the highest hatch rates possible. People like Dean rely on these eggs every day and so do his fry. We extensively tested vs every other major egg we could find. Dean has been hatching brine shrimp daily for 40 years. We simply used him to make sure we had the best thing on the market. We focus on best, not on cheapest. In a day in age where we have less time than ever, a batch of brine shrimp needs to work. A failed hatch is sometimes the difference between life and death of a spawn of fish. Something we don't take likely.
It's unfortunately you're not having luck with the other company, I never want another hobbyist to have wasted money. I do hope you find a good outlet for them. I wish we could bring the price of our eggs down, but really we are fighting the price going up. If we can find a way to scale it down, we will pass it along to customers.