CPI Inflation (when adjusted for inflation, these 'cheap' things are often as expensive as they are today) this is seen with the movie ticket example http://greyenlightenment.com/debunking-the-gold-standard/ Maybe some things are a little more expensive, but it pretty much all evens-out.
Improved Utility (you get a better product despite the higher nominal price)
New products (your dollar buys things that didn't even exist even as early as generation ago)
Expenditures such as food & energy constitutes a smaller percentage of income than generations ago.