I love colour, I really do. But I'm also crazy about mono infrared shots. And ever since I bought an old G2 converted for infrared, I've become convinced that IR makes what would have been a simple shot so much nicer.
Take the photo below, for instance. Take a little after noon, which I normally wouldn't consider a good time to take photos - lots of sunshine, harsh light, and as subject a tree, a shrub and a church tower. Simple enough, as photographic scenes go.
And the infrared result isn't earth-shattering either, but I think it's just so much nicer, infrared.