I've given this some thought now, as I'm all for making my life easier.
However......... I think that the investment in a winch is far more practical for many reasons. I've used my winch to haul very big game like bison out of a ditch, or up the side of a long steep hill. The investment in rope is the same, but the control and power, especially when you're alone is significantly better.
Using the truck to pull the game when alone leaves you with the hope that nothing is hung up as you drive away. The Winch has 130 feet of cable. With 1000 feet of rope you must do it in 125 foot segments, but you can actually watch the operation as it's happening. You can also use two people so that one can guide the animal up and communicate problem sections along the way.
The Winch can also be used to hoist game up to hang from a tree and to get out of trouble when stuck. The Winch on my truck is used quite frequently for landing trees exactly where I want them when cut down, to pulling up fence posts, moving huge boulders, etc. etc. Maybe a guy without a farm or other large acreage has less use, but the end of the day, that investment in the wind up spool just does not have any other use, and is quite difficult to use for game recovery when you're alone.
I would opt for the winch over this device for my needs.