Quote from nutmeg:
"Primary motivation: I want to retire early from the work force, and therefore want to minimize the overall portion of my income that rent is."
From what I've read, sounds like a plan. You want the security of a home so you can concentrate on the next step, a business. I'd like to add one more thought to early retirement which we all have to face whether we own a home or not. Need to have an income stream. Maybe some of the savings from a cheap home you might look at annuities, maybe others have some other ideas. A paid for home still has increases in taxes, energy costs, which at the end of the rainbow will almost equal a mortgage payment.
Yes, I looked into these energy cost issues. Once the home is paid for, I can construct models for hedging against rising energy costs. But if I have an expensive home, there's no way to offset anything with additional cash flow.