Jon Skeet has as of today 1067 bronze badges (and I wish: Keep it up),
more respected to show a 1K display style .
Well, if it works the same way as rep, it would change at 10K (which will take quite a while to reach).
I'm not personally bothered either way, although I'd still want to be able to see the exact number myself, obviously.
If/when I reach 1000 silver badges (again, a long way off) it's more likely to start causing display wonkiness. I'm very happy for the SO team to defer worrying about this until that point :)