What is this Thomas Set?

I have had several of those Tidmouth Stations including one I still have. They were easy to find cheaply in the Japan Auctions.

Yes, I agree I do seem them sometimes but only as the station, never as new in the bucket set. That set is hard to find new for a decent price. Why does the price of Thomas and Friends Plarail become absurd after only a few years since its out of print? I mean do sellers think someone would pay $400-$500 for a Plarail T-33 Sir Handel new in box against a retail price of $20? The value jumps higher than LEGO; but no one buys it at this price so why is it listed at this price? Do TOMY declare the value of the item?