Its just another way to look at it, how doesn't it have any relation to the thread? can you not read and comprehend? the thread is about which player will be better in the next few seasons, a GM is going to want to pick the better player. Potato potato. Stop trying to over complicate things.
Pretty sure the expansion team is going to take the elite center who is 21 over the elite center who is 33, regardless of whether the 33 year old will be better the next two seasons. The difference in age and potential is too great, and expansion teams aren't usually focused on winning the first two years anyway, despite Vegas's early success.
A more apt comparison would be which player would a cup contender add at the same cap hit if they could only keep him for this season and next. But even then it becomes more based on team needs.
And if by complicating things you mean applying basic logic amd reasoning instead of agreeing with terrible analogies, then I'm sorry for bringing a gun to a knife fight