I'm constantly trying NOT to sell my Nikon SLR and lenses to get an XT1 and Fuji lenses. But I keep resisting.
I love the freedom the X100T gives you as it's fixed focal length. I'm not constantly thinking 'which lenses shall I take?' or always swapping lenses depending on what I'm shooting. With the X100 you make the best of what you have.
I'm sure I'll cave in one day, but for the moment I'm resisting!
I did, and I haven't looked back. First I bought an X100S, which was then joined by an X-Pro1 (bought when Fuji did one of their fantastic 'two lens free' deals). Throughout this I had my 'serious' Nikon D800 and a bunch of (fantastic) premium lenses which I could never consider selling.
But then the unthinkable happened - after four months I realised I hadn't taken my D800 out
at all. This coincided with the release of the X-T1, so I just bit the bullet and sold the D800 and got the X-T1.
It's been brilliant.
Simple solution, just go out of the house with a single lens on the camera. I do that most of the time these days.
The advanear is the next time you go out you can use a different lens. One day with an ultrawide, another a tele , then a 35mm prime etc.
I used to leave the house with a massive bag for the D800 and a few lenses. I'd constantly be juggling things, swapping lenses and risking dropping one, or getting debris inside the camera etc. Not to mention the massive weight of all this...
Now the X100S would usually come with me, along with the X-T1 and a single lens, or I'd take the X-T1 and X-Pro1 and have a single lens on either. All this weighs less than the DSLR did, plus I have the flexibility of proper 'live view' and a lighter camera for easier positioning.
Obviously if you're constantly shooting fast moving sports, or maybe very low light photography, then moving away from high a quality, fast full-frame prime setup will probably end up in disappointment, but for
me it's been brilliant.
Now I just inwardly chuckle at all the 'gear slaves' lugging around massive ruck sacks full of gear "You're doing it wrong" I mutter inwardly at them