Sounds like the son didn't really know his father and doesn't appreciate that the real value of the model railway collection was the enjoyment his dad got from operating them. Mind, I know lots of people who don't understand my fascination with model trains and some have asked what they're worth as an investment. Don't think many people consider model railways as a legitimate pass time.
Anyway, on to the subject at hand. While interested, I'm sort of not really bothered about what IRM's next major announcement will be. With the impending arrival of the Class 22 000 railcars I'm fairly covered. At some stage I'd like to have something for my silver A classes to haul but that is no longer the priority it once was, however, I'd find it hard to say no to silver B101 or C201 locomotives.