Agreed, those small generators are more of a hobby than a home power solution. They are a great idea for running an irrigation pump in a farmers field or other very specific uses.
A larger tower (it's foundations & guy wires) costs a lot more, a usefully sized generator costs significantly more and one must also factor in a very large battery bank & a rectifier to change your batteries DC power into usable AC power. I suspect Mark is not far off from the correct cost but, honestly, I a have not looked into newer, possibly more efficient, technologies.
