title_body: What's the simplest/cheapest coffee maker that can make a good latte automatically?
upvoted_answer: I suggest you that do some research on superautomatic machines, there are plenty of options and we can discuss for years on which one is better (or worse).
  
  You have to consider your budget I'll say. There are many machines, many brands, many functionalities, etc... But you'll never produce a great latte, because no machine (someone correct me please) can steam milk automatically with the consistency of a human barista. Most of automatic machines only froth the milk. 
  
  Maybe if you could present us more options or specify your constraints, we can be more useful.