All the following is personal opinion and coloured by quite a few years seperation from events so take them with a Narcissus sized grain of salt.
The Deck 36 Motion Tracker was to be the first in a line of very accurate Aliens props. All the parts were cast from the correct screen used parts and the whole thing was checked and verified by some very Aliens knowledgable people.
I recieved the first one to critique and review in my then position as operator of this board. I will stress that I did pay full price for the MT, so I feel my opinions were not coloured by the "freebie" factor.
As a kit it went together faultlessly, helped by the engineering finesse put into it, and by subtle but cool factors like the resin being self coloured in BB and hollow cast so even the internal parts matched the screen used parts. At the time, it was the ultimate MT short of using all the screen used parts but it only had a simple slide show type display and lights, so lacked the electronic gee-whizzery of the MR version.
I also got some of the Deck 36 grenades and a grenade box and recieved some of the resin parts of the projected Pulse Rifle, all of which did nothing to dispel the belief that Deck 36 would be a valuable player in the props community, in my mind at least.
The D36 MT was not cheap, but well worth it
from my point of view.
However some people expressed their views it was overpriced on the board and a major meldown ensued by the maker that resulted in very few people actually getting one. What people did not see on the board was the amount of time I personally spent off-board ( all night sessions being the norm) trying to help resolve the issues and to metaphorically "talk the guy down off the ledge".....
But that is part and parcel of being involved in running a board such as this and I do not begrudge it one iota.
Sometimes I even miss it......
The Deck 36 Motion Tracker is important because I have so much emotionally invested in it, plus I will keep it to commemorate those who didn't get one when they should have

.
Upside yesterday while sorting stuff I found my Hyperdine light and sound package for a motion tracker, so there is some bells and whistles to add to an MT build!
Cheers
Tony