After years as artistic Luddite, I finally caved in, downloaded Krita and tried some digital paintings:
There's quite a bit of a learning curve, I think! I am somewhat in two minds about it. I'm not sure one can ever really quite get the same kind of effects as one can with physical media, but then, that might say more about my own lack of technique and experience than about the medium itself. On the positive side, there is no mess and you don't end up with your whole living space cluttered up with boxes of paintings.