The proceeds are taxable when you cash in so it only kicks the tax can down the road but maybe taxes will go down.....  

The IRA will then receive interest on the loan.What you cannot do is things like lend to yourself or a family member, pay yourself for management services provided to the IRA, personally take the income produced by an IRA investment other than as a formally reported and potentially taxable distribution from the IRA, or otherwise personally benefit today from what you are doing to grow and invest the IRA.

Because it is borrowed money, it is not taxable to me until the property is sold.

I realize the 28% marginal rate kicks in, (don't recall at what taxable income rate.

In Canada, this would be viewed as a taxable benefit for the superintendent.

Rich people like ranches because they enjoy visiting the countryside and the losses from the agriculture operations are a shelter from their taxable income via other sources. 

It depends on your total annual taxable income...do a Google Search for "marginal tax brackets 2016" and you'll see what you're likely to pay in federal income tax.

You can trade up in value by acquiring more in value, and you can also trade down in value, but trading down would trigger some taxable gain. 

      - In an S-corporation there is a $45,000 taxable gain

You can also take a loan out of the 401k generally up to 50% of the value and repay up to 5 years with the interest actually paid to yourself, so it's a handy way to reduce taxable income and provide a source of funds for down payments.