Im not quite sure where you are seeing similar prices. A lot of time seedboxes will all run on the same boxes with top specs, but what makes them differ is space.

I would love a dedi box, but cannot justify the cost. While that awesome set up is pretty great, I still cannot put out top money for the convience of not simply searching site individually. Maybe its because I dont watch anything niche or super high quality. In essence you really aren't missing anything, and if you want, pm me where you are finding such cheap dedis that they compare to seedboxes