Well Trevor, a lot of us can tell availabity/even exists? By how often they are found on eBay, Jauce and others. Steam thomas for example. He's not common to find on eBay, but not rare either. You will occasionally see him. Monty on the other hand could be a myth. None of us have seen him on eBay before.
Proud owner of Tomy/Plarail trains. 