I have both the 43 Ltd and the 50/1.4. Although I love the 50 it's never in my bag anymore, whereas the 43 is either on my camera or in the bag.
If anyone is thinking to themselves that they would rather the extra telephoto of the 50 over the 43 then I'd urge them to re-think that. The 43 is so sharp that you can easily trim off the extra width and be left with a 50 that would be as sharp as anything from a 50 - and of course you've now added some flexibility to your shooting.
The shot below ( I think I've posted before) is when I was caught short (of the perfect focal length) but the 43 still came through with decent shots.
And a 100% crop from the shot above :