A friend of mine rents a house that was converted into two units and has them split the utilities in half.

Think about it: PoG rises one dollar, what does that do for a miner that produces millions of ounces?

@Andrew Miner , @Jace Peters :Let's make it happen soon.

Eagle Lake no.. we had a family house on the Yuba river in Sierra city.. it was way cool.. 4 generations ago relatives were gold miners and built the home there.. our relative was the Sherriff of Sierra county longest reigning Sherriff in CA history over 50 years..

How does the fact that an owner is selling mineral rights with a property play into the valuation/appraisal?

But there can still be room if you've got the right units to make a comparable return.Oil and Gas and mineral rights are also 1031 compatible. 

It can also indicate a failure to convey certain property rights (such as mineral rights) to the former owner of a property or some other questionable link in the succession of title.

Same sqft as mine. Rented

What that means is that an investor who picked up one of those could be waiting around for a while to get it occupied, compared to places that are a bit older but still nice and updated, but cost a good amount less (mine rents for $3000.00).

If you really want to get funky you need to also look at (in limited cases) mineral rights, if they convey, etc.