What's the value of being able to devote tomorrow to reading a Phyiscs (or whatever) book if you don't feel like going in to work? Or going out to a movie?
What's the value of being able to pick your kid up from daycare no-hassle when they run a fever?
What's the value of never ever having to dress some way you don't want to, to travel at times that annoy you, etc.?
When you're an employee, or a tightly-scheduled professional, or in a high-velocity startup, you give up all of these things. Sometimes it's worth it, but often it's not.
Also he owns Appointment Reminder and he didn't count the appreciation of that asset. Lets assume the total profit for AR went from 100k to 135k. Now lets make the assumption that it is valued at a 5x multiple, this means that he increased his net worth by 175k. Thus his total "profits" for the year would be under estimated by 175k.
2007 $6,200 / 100 hours / $60/hour
2008 $10,700 / ?? hours /
2009 $18,525 / 130 hours / $125~$150/hour
2010 $25,904 / 115 hours / $200~250/hour
2011 $25,000 / 35 hours / $700/hour
2012 $38,598 / 38 hours / $1,000/hour
2013 $23,000 / 23 hours / $1,000/hour
2014 $20,000 / 5 hours / $4,000/hour
Rough total is $170,000 from 550 hours of effort. Lets assume it ticks over for a few more years. You've basically earnt quarter of a million from equivalent of 3 or 4 months effort.
That isn't just worth much more than however much your average BigCorp Developer is making... that's priceless.
That said, the freedom to choose whatever city you like to live in, is priceless.