Ever since I got back into photography in 2007 and soon after got a Leica M2 (which I stupidly traded for a Fujifilm X100), I found that as for focal lengths, I really favored 28mm and 40mm, as opposed to a more standard kit of 35mm and 50mm.
I had to sell one of my favorite cameras of all time when I was unemployed, my Minolta TC-1 that has a fixed 28mm lens. Ever since I've been dreaming of getting another. But they are very pricey so haven't yet got one. When I discovered old CCD sensor digital, I got a Richo GRD iv as a substitute. And though I like many of the pics taken with that camera (if you dig on my site you can find them), I never really recaptured the magic of the TC-1.
I think the reason is I don't like 28mm anymore. I think my preferences have changed. I still love 40mm and still dislike 35mm, but now I like 50mm and maybe even 85mm.
Have any of you gone through similar changes in focal length (field of view) preferences?