i wonder why one should not prefer Nikon over Canon !!

Well, sometimes you can hardly ever, never tell.......Who knows why the Salmon do what they do.?

I have both as well as Fuji and Olympus and I use a specific camera for a specific purpose.  Ain't no "one size fits all" rule.

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' You don't have to have the best of everything to get the best out of what you do have'.