Hi, I am new here posting but been around reading forums, buying and reselling for about a year. What do you think of the following ? Based on the simple rule of supply and demand and critical timing, for nearly retired set, I mean the sets that are only available at Lego SH, just before they go poof everywhere. Can we say that those sets which have the highest price ratio from Amazon to retail are the most promising ones to invest in ? So, in that case let's see as an example, PC -> 214/150