Ya, my first real camera was a FE, and then as I got more and more serious with photography, got FM and fm2 bodies. The nice thing back then is that you could find good used Nikkor stuff at reasonable prices. I sold most of my manual focus stuff when we started using af bodies, but I kept one FM or fm2, don't recall, my fav 35 f2 and a 105.

​​​​​​RE using the x100s, like others have reported who have used digi bodies like this a lot bike touring, I've used the same old Nikon PT and shoot, for a lot of bike trips, have to check what model it is, one of the compact zoom models, you know with the equivalent of maybe a 24-180 or close. Nothing fancy, but I've carried mine in a handlebar bag on long trips. Biked through central America, another through about half of Mexico, across France, and other little stuff, and other than a slightly sticky clam opening lens cover (so typical of these types of cameras) the thing worked fine.
The great thing with these size cameras, mine is probably close to size and weight to the x100, is that their lower mass means less bouncing around. Isolate the camera from jarring, and as you know, they are great cameras to use and to just grab. Yes, with the x100 you've only got the 35mm view, that's why I went with the compact zoom route. Other reason for me if course was thinking that if someone stuck a gun to my head in Honduras, losing that camera wouldnt be a big loss, and I had to be realistic of this possibility.
Just checked, it's a Coolpix P7000, old thing and nothing special, but a tool for my purposes and fit the budget.