> It guessed wrong for me but if the 'ExampleCount' value is accurate, you are dealing with a paucity of data.

Yes, you guys are the guinea pigs, sorry about that :-) We'll need a lot more data before it is really going to get interesting.

> Will it look for more decision nodes to add or are you stuck with region and browserHeight?

There are quite a few more, I pasted them in another comment. You can also see them if you "view source" on that page.

> If not, how certain are you that you have the right data to accurately model the problem?

I'm not, the fun of this is seeing how well people's favorite pets correlate with information their browsers give up automatically.