I have been a model builder on and off for over 50 years. I have seen it in good times and bad. I felt in was dying several years ago but look at it now. Now is the best time that I can recall. Choices of not only kits but glues, paints not to mention the aftermarket has never been better. I do have my doubts that as us older builders either pass on or get to the point that building becomes difficult the hobby will suffer. I doubt it will ever go away but I do think the decline will begin in the not too distant future. I myself don't know of any kids or young adults building models. They seem to prefer the video games to building. We are all sad about the closing of Slixx which may not have anything to do about a decline in model building but unless someone picks up the slack on decals it will soon be hard to build a lot of the replicas we enjoy building.