The Tartan R1 DVD also has 4 or 5 deleted scenes presented in the bonus features, so
someone made the distinction of what was "movie canon" and what was truly a scene to be left out. So I don;t think Tartan randomly grabbed a couple of scenes to toss in. The extra scenes we've been discussing seem to be very integral to the movie (or at least add layers and provoke thought), so I have to assume at some point the director liked them. Perhaps when the movie did not do well in Korea due to its "opacity" he said, basically, "Oh yeah? You want opacity? I'll give you opacity!" and cut these linking scenes from the Korean DVD.
I thought that old man in the hospital was his dad as not much have been said of what happened to him later and why would he have the key to the store.
I contemplated that as well, and it's likely a good assumption. But if so, the bookend of the little boy at the end would be--his son? (Well, he didn't have a son). So part of me thinks it's a representation of Min himself as an old man (giving the key to himself representing his mind trying to make a breakthrough to allow him to remember his ownership of the store, b/c he would have had the key himself the whole time, but would not of remembered it without this psychic assistance), and the boy is a representation of him as a child. Full circle. Also, to support this theory is the fact that Min did not seem to recognize the old man as Father. And we do have support all through the movie of Min not recognizing himself (in the forest, on the phone). But the "passing the torch" from father to son aspect that
@sitenoise mentioned could very well be the intent of the scene, and was my initial assumption as well. Another aspect of this movie that we'll never suss out a definitive answer I don't think.
It puzzled me as to whether he [the old man on the ski lift] was the same old man as was in Min's hospital room (as opposed to an old man who had been in a hospital), but I was "sure" that he was one of the old geezers in the photos on the wall.
In my notes I jotted down "creepy old hospital dude on ski lift!" so it struck me the same way. And I mentioned back on p.1 that I was pretty sure the central photo on the photo wall was the same old man. His presence seems to be important to the film, so another reason it doesn't make sense that the key scene was cut.