The first and foremost reason people use any form of mounted optics is they provide a fast, accurate sight. Second, be they red dot or truly telescopic, sights have shrunk in size, making them better suited for duty.
When it comes to gear and gadgets for duty applications, many of us are drawn to the coolest, most expensive items. That's true of weapons and it's true of weapon accessories such as optics. But do we really have to have the priciest gear to achieve our mission? Maybe. Maybe not.