I lost it because I did not follow the safety rules regarding wind speed, so basically I just watched it fly away to Narnia until it disappeared. I tried searching for it where the last position was recorded but did not find it
I got my MM stuck up a tree so started looking at options to get just a new aircraft and soon found there were basically none, other than buying a new/second hand drone and controller (ie not flymore combo). I managed to eventually get my Mini down from the tree, and miraculously it was undamaged and fully working after 4 weeks in the rain and shine, so no longer need to get just a drone.
Demand for just the drone with no controller etc is high for the exact reason you're looking for one, but unfortunately very few people just lose the controller and then have a spare drone to sell.