it was all too vague to me and sounded like magic. I understand he couldn't say what specifics were but it was too much of a "TA DA!" moment for me to grasp it.
If it is doable for the household then by all means...$3,000? That would pay for itself in no time. But we'd need to know maintenance/replacement costs. We also have a bad reputation for not thinking things through for the long run.