Rugged Wear Stretch Jean - Stonewashed

First, let me say these jeans are exactly what I wanted and I really like them. But... they are not flex, there is no stretch at all to the denim. The light weight is great, the fit and feel excellent. But no flex. And I have a question: why do you keep changing your product lines so often? What was wrong with Authentics that you had to drop the line? What was so bad with the Flex jeans you used to sell, that actually did stretch a bit, that you had to replace them with these? Change for change sake? Not a fan of it!