This thread isn't about decisions Mazda made in the past, I'm talking about Mazda as a whole today, but for argument sake, the Rotary is something Mazda was known for and is a significant part of their heritage, it helped them to become the first Japanese OEM to win at Le Mans and is widely regarded as amazingly powerful and tunable when done right. In my opinion, it truly has a unique personality that can't compare to any other engine design. There are tons of people who love the design and the sound. I agree that it may not be the most reliable engine or the most efficient and definitely not an engine for your average econobox production vehicle, but without Mazda's dedication to that design and mass production, it would have not made it into the (relatively) modern day RX-7 and RX-8 as well as Le Mans racers. When applied to the right use, it has it's place and personally I'm glad they developed it to the level they did, It made Mazda stand out as a unique Automotive Manufacturer, things could have been different maybe, for the better, or worse but I think overall it was a positive decision that helped build the character Mazda is known for today.