I was just thinking back to when I bought my first bucket of NLS approx. 15 yrs ago, the cost was $50 US. Today, the cost for that same formula (cichlid formula) is still $50, yet the formula has clearly advanced in quality over the years. SA Krill is still the primary form of protein, along with fish, and squid, soybean isolate was dropped from their ingredient list years ago, and the increase and assortment of algae/seaweed has not only improved the nutrient levels and bioavailability of certain nutrients, it has also allowed the amount of wheat to be reduced as the algae also acts as a binding agent.
Not many things in life carry the same price tag as they did 15 yrs ago, and certainly not where the overall quality of the product line has at the same time improved.