I'm about done for the day after three Starbucks (not cups of Starbucks coffee - three locations!).
It is about BEING THERE and what we do when we ARE THERE!
If you are not out somewhere meeting people while you get other things accomplished, you are missing some great opportunities. You can have solitude, your phone, your internet connection, people, and coffee all at the same time and in the same place.
If you are an entrepreneur, prove it by meeting someone today. If you think you have too much office work to do for that, then pack up your office and take it to Starbucks.