sell 14 and 45? then what?

Interesting thought, and I agree, but only to a point....I think it depends on where you do most of your shooting.

For instance:  When I am in town, the 14mm pancake is the ideal focal length for me.  That lens alone usually suffices for just about all my needs in the close quarters of the town.  I haven't found the need to use a kit short zoom since getting the 14mm at all, and keep meaning to sell the 14-45mm since I simply never, ever, use it.

At home, though, I never have enough light for indoor shooting, so the 25mm f1.4 works best (or the 45mm f1.8 or the vintage Yashica 50mm f1.8, depending on the FOV I want, and the need for AF).

When I am out on a walk in the woods, I find I actually use the most variety of lenses.  Sometimes there are close ups of plants I want, or long shots, or really wide shots.  In that case, I take the 14-140mm as the all purpose solution, but add the 12mm and the 100-30mm, and sometimes the legacy 55mm macro, for the heck of it....and I use them all.  If I took just the 12mm or 14mm, I would be frustrated by missing some good long shots or macro opportunities in the woods.

I think what lenses you need really strongly depends on what shooting environment you are in at the time....

-J