Heeeellllllppppp....
The choices are: Ebay 2nd hand, £255.
Ebay new but no guarantee (excellent feedback though), £299.
British Sewing Centre, £349
SewingUK, £349
Other places, £599
I've just been trying to persuade myself that SewingUK might be above board by looking at their Trustpilot entries... Overview isn't bad - 8.4/10. But that breaks down to Excellent 66%, Great 3%, Average 0%, Poor 8%, Bad 24%, and
58% of their reviews - all excellent - were made on May 13th and 14th. Prior to that 9/12, spaced over 21 months, were poor or bad, mostly bad. Something smells very odd there.
So it's looking as though I may have to forgo the manufacturer's guarantee, since it would effectively cost me the same again as the machine.