If your boss was to come to you and tell you that coffee breaks were no longer allowed, then at a guess i would say you would be appalled. You would want to know how something like this could possibly be allowed to happen.
How about on the flip side if you were working for yourself, there would probably be a good chance that you would take less coffee breaks as it is. This is probably because often times when you are aware of the costs of a business you are more interested in getting the job done and having your own time once you are finished what you need to get done.
How about taking your coffee break from 10 minutes to two hours and still get more work done. It is as easy as putting your laptop in your bag and taking a walk to the local coffee shop. If they have Wifi, fantastic, if not maybe connect with a mobile broadband supplier. But take your work with you and enjoy your coffee while getting your work done.
Now this is of course a much more acceptable solution if you work for yourself, rather then an employer. Working for an employer, there is a good chance you will get questions why you were gone for 2 hours, and told not to do it again. Maybe if you are lucky and can show better results they may consider allowing it, but the chances are not that great really.