What?!? Why on Earth would you sell THIS lens? It's sharp, even at f/1.4. It focuses pretty darn close. It has nice bokeh. It handle flare well. Admittedly, I haven't tried it on a full-frame body yet... perhaps 35mm doesn't feel nice there... or something...

But yeah, if 35mm doesn't fit your shooting style, it will just sit on the shelf. You might as well sell it while they're still in demand.