There's far more to this Street View situation than the logical statement of "well, there are tons of places in Montana that don't have streets". You know, huge chunks of wilderness and stuff. That certainly contributes to the lack of street view mapping, but it's not the whole story.
I'm sure you've said it before. Someone asks you a question you should know but at that moment you can't come up with the answer to save your life. So you google it.
What how-to question do people from Montana google the most? Estatley had a state by state map...
If you've never been bored enough to play the "Autocomplete Game" with Google, you might be missing out. It's a great way to get some insight on what people are searching for.
I'm not going to pretend to know all of the fancy, patented, secret algorithms that Google uses to work its magic, but most of us have seen the autocomplete feature when you're typing in a search...