All joking aside, it is right that they can charge what they want to for it, I could buy one if I wanted to and if I saw the value in it. But I don’t personally.
Similarly I would not pay £1300 for a og OP1, simply not worth it, I have 2 of them and I paid less than that for both of them. £800 is what I’d value them.
For me TE gear is over priced (POs aside) due to the numerous hardware issues I have had with the many products of theirs that I own, coupled with their very bad customer service. Out of all the gear I have TE stuff is by far the least reliable, this is a simple fact based on my own experience.
Regarding the OP1f I actually prefer the look of the original, the specs are of course much improved, and had it been £1300 I still would not be interested, based on the current capabilities of it. At the end of the day it is still a OP1, just with stereo tracks, a new effect and a new synth engine, better sound quality, and a little more capacity in sampler and tape(s).
But if you are stoked about the OP1f then I am stoked for you, there is no denying the appeal especially for people who have used one, that is for sure, and if you think it is worth the money - which is a personal thing anyway, cool.