Not to mention: able to live in a large, comfortable house in the country side in the middle of nature (if that's your thing).

EDIT: I think kids-flu is hard to avoid at that age, home office or not :P

> slightly increased exposure to the three germ incubating kids under 5 that live here, but there's not much I can do about that

You could homeschool them.

My cycle to work and back is half an hours hard cycling each way. I am in good shape since I started this job. (Previously it was a <10 minute roll down a hill followed by 15 minutes cycle back up).

Wait, these are cons to working from home? If you get distracted at home, you probably get as equally distracted at work. I have been working from home for close to 5 years now and for me it's been the exact opposite - less distractions, more work done in shorter amount of time it would take me to do it in the office. Less social interaction - sure, but it doesn't have to be that way. Social interaction lost one place can be gained elsewhere. Stringent routines? What's wrong with discipline and having the ability to engage and disengage when you please?

I disagree with your first assertion :) And I have a long daily commute which takes a lot of time and energy that would otherwise be available for my family. I'd argue that the little interactions throughout a workday at home are more valuable than few or no interactions from the office - quality time or not.