It seems that the only Brompton bicycles out there at the moment seem to be Brompton Electric versions and for many, this is not what they want to buy. In a recent article in the Financial Times the MD of Brompton has warned of extra costs due in part to extra costs from aluminium shortages, the higher cost of steel and increased shipping costs and Brexit. Perhaps this - the the huge demand - is a factor in the shortages?
I do think that Brompton need to do something to get more bikes out there as I know of 3x people who, fed up waiting, waiting lists and the scrabble for a new Brompton that a shop may or may not have, is all a bridge too far. Two have bought bikes by Dahon and one has bought a Birdy. They do not regret their choices and I doubt they will knock on the door of Brompton anytime soon - if at all.
You can have the best product in the world (and let's face it, as far as folding bikes go, it is the Brompton) but if you can't buy it within a reasonable timescale, you will probably walk and go elsewhere. I just hope Brompton can do something about this and the increasing cost of a Brompton.
Stay safe out there people.