Ted Clutter

I have owned the 10-24 twice, going through the same ruminations that you are suffering now. Both times I shed the lens in favor of the 14mm and the 23mm. Why? First and foremost, quality. The 10-24 just does not give the razor sharpness of the primes. Second, I found that I used the 10-24 most of the time at the short end, so a lot of weight and size for an essentially single focal length lens. I also believe that (for me) OIS is wasted on such a short zoom lens. It is true that I lack the 10mm perspective at the current time, but I also do not have to crop out squeezed, somewhat mushy corners, which significantly lessens the field of the 10-24 used at its shortest focal length. I find that for the majority of my uses, the 14 does just fine... indeed, great. And nothing beats the 23 for your X-T1 or X-T2. Always a good idea to have a backup with your X100T, but I would not give up the 23 for my main camera. Redundancy? You will only be sorry if you get rid of either lens. My recommendation would be to rent or buy the 10-24 and add it to your kit. See how you like it. Many photographers do amazing things with it. But remember what Ansel Adams said (paraphrasing) "The trouble with having lots of lenses is always wondering which one to use, instead of shooting."

Another landscape with the Fuji X-T1 - with 10-24mm - Seal Rocks, Oregon

Inland water along the Oregon Coast, winter, with the Fuji X-T1, 50-140mm.

Fuji X is great for landscape. Don't let all the megapixels guys fool you. I get very acceptable 20x30 prints from my XT-1 - such as this... with 18-55mm @ ISO 200.