Although I've mad respects for the Model M's, Das keyboards, and other such beautiful, mechanical monsters, I am typing this on a Logitech. A Dinovo Keyboard for laptops with amazing feel in the keyboard and a general sense of quality still, but it's utterly opposite of a Model M.
It's because I also have a Macbook, so really, getting an old-style keyboard is just going to annoy me when I switch between them.
But I've used quite a few keyboards (mostly Logitechs) and I like this one best. It feels nice and the keypresses are pretty sure and exact, especially since they're laptop-keys.