It seems to be the standard price for it from the main sellers.  I couldn't find the one you mention @Gernella although there is one being sold for £28.88 + £1.49 delivery - however, it's not a Janome made one, has only one lot of feedback and wouldn't arrive until late August!

I have bitten the bullet and ordered from Frank Knutt - £59, but free delivery, and he had bobbins too. 

I had a nice second reply from Sew Essential, saying that in that case the machine will be a category C. 

Now whenever I've seen the listings of machine categories the straight stitchers seem to be in a category by themselves.  However, if it is a Cat C there are lots of other things available... does anybody know?

Thank you @Celia!  I am very surprised as Sew Essential.

@Efemera I think there is also a Juki and a Brother that are identical machines.  I will look into it - thank you.

Aaagh!   

I want to get a walking foot for my Megaquilter.  I found what I think is the correct foot on the Sew Essential website, labelled as being for the Janome 1600P QC.  I contacted them to check before ordering it, and they replied that you cannot put a Janome foot on a Husqvarna machine because feet are never interchangeable between brands, that Viking has confirmed this, and that feet are no longer made for the Megaquilter.

Well, my 1/4 in foot is branded Janome, and, as I understand it, the Janome1600P QC and the Husqvarna Megaquilter (and the Pfaff Grand Quilter) are identical machines, made in the same factory at the same time with only a few cosmetic differences.

Can someone just back me up on this while I go looking elsewhere for a Janome 1600P QC walking foot?

I have a coverstitcher.  I don't use it a lot, and mainly bought it because my other machines tunnel terribly when I try doing a twin needle hem.  I'm glad to have it, but wouldn't call it necessary by any means, and if your normal machine behaves with a twin needle there's very little need for one.

Mind you, I'm sure it does lots of exciting things that I haven't discovered yet - I seem to remember someone (Efemera?) doing some beautiful binding with theirs.

There are boxes alongside the instructions with links to the free designs, although I had to copy and paste them rather than clicking on them and then one had an error in the url (a . where there should have been a / ).  One was an £8 design that became free, though.

That looks great.  That's exactly what I'm planning to do on my seabirds quilt, which has plain dark blue sashing.  Did you use a template?