That's pretty much
exactly my conclusion
> Citation needed.
It really isn't. It was a hypothetical choice between 2 models, with ECC or LEDs, at the same price. Hypothetical because most boards don't offer the ECC support at all, and certainly not at the same price.
> LEDs are a great opportunity to increase profit margin, so I'm not sure about your price conclusions
You confused manufacturing costs, price of the product, and profit margins. LEDs cost far less to integrate than ECC but command a higher price premium (thus better profit margins) from the regular consumer. Again supporting my statement that even if presented with 2 absolutely identical parts save for ECC vs. LEDs the vast majority of consumers will go for LEDs because they don't care or know about ECC.