My dad has worked on the Delta, Atlas, and Titan rockets close to 30 years. These rockets are expensive (an order of magnitude more than SpaceX), but they can do one thing that SpaceX can't: guarantee success. If you had to put up sensitive cargo (commercial or military) that costs on the order of $100 million (and sometimes much much more), would you entrust a fledgling company with its sparse mission success record or the more established company with proven success? And if you were to hop on a rocket, would you pick the one that had a severe failure within the past few years, or one that has been operating as engineered for the past 20-30 years?
Rocket launching doesn't go by the typical startup mantra. Mistakes are very real, very expensive, and have much more human impact.
SpaceX seems more to me like fast food: their efficiency is awe-inspiring, but I worry at what significant cost?