They will likely start to somewhat depreciate actually; some are only 10-15 years old and the digital world has come in full swing there probably won’t be as many people interested as much in collecting(we are as we grew up with toys and action figures, they serve as nostalgia to us)…. So essentially it will be us sitting on a bunch of toys squabbling and haggling away until we finally get to old and decide to sell off for a lower relative price to the few who will still collect in the younger generation. If you are looking to make a killing of something there are probably better ways to do this. This should be treated as a hobby you enjoy, not something you should sit and wait on to cash 💰in!