1) You might very good with text communications, as all hackers are. But your clients, especially big corporate players from which you'll land a $$$ job, might not be. And they will not level with you since they can have someone that fill their requirements.
2) Theoretically you can open your laptop while snowboarding at the French Alps and write the Linux Kernel. But it's certainly much more comfortable to do so in front of a 27" iMac sitting at home, with your cup of tea on the side your ergonomic chair and keyboard etc.
There was one time that I thought it was cool to being able to do all my payments and everything via ebanking while I was on vacation. Then I found it that it sucks big time, having to do job while others having fun.
However that's just me, it's like it's an absolute truth or anything. I'd just prefer to hand a job over to someone who I know has an office. Give him more chances to have established a decent work flow.