WEPNER! dhalsimrocks here!
I've seen some of your posts and threads and didn't notice it was you until this one. Good to see you here!
I'm currently earning less than you as a community college instructor. Now, that's for a 9 month contract. I can do additional work such as teaching overloads and in the summer. I taught one course learning contract in the Spring and I'm teaching one this summer, which brings in another couple grand. Sooooo, technically I'm right about where you are. I also have ample time to work on side projects that can earn money, but honestly, I haven't been doing so very much. It's been too nice spending time with my wife and daughter.
I could probably earn more somewhere else if I looked hard enough. But it would take a SUBSTANTIAL amount more to make me interested. Right now my schedule is so great, I enjoy the work so much and it is so low stress and fun that it more than makes up for the lesser pay.
The second advantage I have is an awesome, hardworking wife, also a teacher, who makes more than I do. Our combined incomes make saving a lot of money pretty easy.
The third advantage is that we live in a VERY LOW cost of living area. You can get a LOT of house around here for $100k, property taxes are practically nothing compared to other locations and it's just way cheap in general. So our combined wages of somewhere around $70k are pretty substantial around here (although some local residents would have you believe it's still hard to get by on that amount).
I realized pretty quickly when first reading MMM's blog that I would not be able to retire for about 10 years, possibly 12. However, just having that light at the end of the tunnel... knowing there was an end in sight to my working career, and more importantly, solving all our financial problems within about 1 month and setting us on the path to security, was far more important than how long it would take us to reach FI. We are so much happier, healthier and optimistic.
So what we have essentially, is a situation where we already feel 25% retired. In 10 years, we'll be 100% retired according to MMM's excellent definition of the term. I'm very happy with that, and I'm not so sure even double my current income would be worth it. Especially considering the type of work I'd have to do and the type of place i'd have to work for to get that extra income. No way.