I certainly wish that they spread faster. Bitcoin ATMs are a great advertisement and an easy way to get some lower amounts of bitcoins. They are important for a mass adoption in my opinion.
I understand that they are very expensive to operate though, but the are also cool as hell in my opinion.
but it need more people to get spreaded around , just in my opinion , if in a city atleast 200 people using bitcoin probably there will be built an ATM