Considering my high priorities are still the set with Telly and Murray, The Count is the character I want most after them (as Super Grover's with Murray anyway). I usually try to avoid variants unless they're in sets like this, as I value characters over variants (hence the major problems I had with the last TMNT toy line). The thing is, you never know what the future can bring. These things are selling pretty darn good (at least in my area), and I'm sure we could see more in time. But I'd think to pick it up just in case. The only other Count we've got so far is molded into a toy bus.
I really hope to see more characters if we're getting a third and fourth series. If not so much fan favorites, than characters that appear frequently on the show, but never get any merchandising love. Say, Baby Bear, Grundgetta, Ovejita, or Stinky the Stinkweed. Maybe, in time, we'll see those rarer, but still classic favorite characters like Herry. Me? I would LOVE to see a Mr. Johnson/Waiter Grover set.