I agree with the sentiment of earning and burning, but in fairness the increase in number of points needed for a room is at least in part offset by the increased price of rooms.

Example: Suppose a particular room costs $100 and you need 10,000 points for the room. That's a penny per point. Suppose in 10 years you need 20,000 points, but the room rises to $200. That's still a penny a point. And for most people, it will take less work to earn that penny in 10 years than to earn it now.

While in practice the value will likely dip below a penny per point, it's also highly likely that the decline will be partially offset by higher room prices.