i know inflation is a hard one to get your head around.
ok lets pretend then you bought a investment property on a interest only loan.
now pick any time in the last 100 years (obviously excluding the bubble years of 1999-2003 and 2008-2010) but feel free to pick any time period in that last 100 years.
you will see it doesnt get any easier.. even though wages and rents grow, so does your loan grow with inflation.
only reason it gets easier is because your PAYING THE LOAN DOWN, not because things are inflating!!
Only time you can make money out of inflation is to have a loan with a interest rate below the inflation rate.. - doesnt happen!