There's nothing like 'em IMHO. And although lots of folks love the old ones, I think the new ones are made better and often sound better. I know people who have spent 000's to get a 30's Style O or Triolian to play properly (they are cool though).
Here's what my now sold Radiotone sounds like:
And the new M-1 (not much of a recording - I think this was it's second day with me