Actually, in a correctly designed system, values SHOULD change, as supply and demand factors are always changing. I have no problem at all with that aspect of Points Lite. Indeed, I would submit that it is a better and more realistic system than the frozen numbers of the regular Points system.
The problems are 1) too many of the values given make no sense whatsoever looking at supply and demand factors, 2) too often values are different at the very same point in time depending whether it is a week going in or out (values should be the same regardless of direction in an honest system), and 3) There are obvious cases of artificial manipulation of values both up and down for favored or disfavored resorts or areas.
The second factor is a big red flag that something is rotten in the system. If an exchange company were taking a cut of points as its fee for service, one would always expect the number to trade in would always exceed the number given for a deposit in order to provide for this service fee. BUT that is not the case, as RCI's fee for service is an exchange fee in cash. Thus when the values are different for the same week at the same point in time, something else is going on. If it takes more points lite to trade in than you get for a deposit, then RCI is deliberately undervaluing the deposit. If one gets more for a deposit than it takes to trade into the same week at the same point in time, then RCI is deliberately overvaluing the deposit. There are some resorts in the system that are consistently deliberately overvalued. Others are consistently deliberately undervalued. When values more periodically for changes in supply and demand, both the value in and the value out should both move at the same time and to the same number.