Funny enough, this happens in my company. We have two products in market. An "old" one (that actually paid the bills for a looong time). And another, newer one

Funny enough, this happens in my company. We have two products in market. An "old" one (that actually paid the bills for a looong time). And another, newer one that was supposed to replace the old one way to long ago as well (That didn't happen yet, but to be honest... it's complicated). Every time I was shown what the new product does, it was a demonstration of how it works, related to the old one. The question "what does this product provides to our customers that the old one doesn't" hasn't been answered in years. Epilogue: Couple years back we got a beast of a sales man, and he's shoving the new product down the customers throat as if it was heroin laced candy. I'm not complaining, but would we had dedicated the dev time to the old product, we would probably be a main competitor in our market.