^^^IF you use picatinney mounts instead of ocular, there’s no multiple mount expenses. If you run a Wilcox shoe, it’s even faster/more simple and versatile. They fill a niche, especially if you’re hunting afternoon and night on same outing, or just want to be able to run multiple rigs that you’d rather not remove the day optics from. It’s a ‘your needs’ thing. Adjustments were never an issue, as it’s generally resting on a tripod when static, anyway.
