Thanks for the replies.
I think that it will certainly affect me. This is not a financial thing, but a simple matter of getting rid of them when they are complete. The international demand is still there, but transit insurance is no longer realistic beyond the UK.
For years, I have sent them to the twice-yearly auctions in London, but the fees have already risen and deductions are quite heavy. I recently sold one at auction for £600, but when the cheque arrived, it had been whittled down to £382.49 (£217.51 deductions!).
On top of that, it cost £25 to send and the income tax will take a large slice of what is left!
Article writing is unsatsifactory as well as the common trend seems to be to accept articles and then wait a couple of years before publishing (and paying), so I have given up on that now. My current plan is to write my own books and physically make them as well. I can have them bound in town for less than £3 each. CD disks (e-books) are also very profitable, but I am wondering if people will be spending less.
As I build about 9 models a year, I will run out of space by the end of this year unless something happens to the market..
Bob