>you can eat and be back at your desk, _if you want to_, within a few minutes<
The key part is "if you want to".
Some days I use the extra time just to get more done, because it's crunch time. Some days I use the extra time to get home earlier. Some days I spend lunch-time playing soccer and grab something on the way back to my desk. Most days I enjoy a relaxed lunch.
The best thing is that I have choices. It just so happens that the easiest choice is usually to round up some co-workers and walk down to the closest cafe :-) But nobody is going to say anything if I want to do my own thing and have some time to myself.
