Cell phones
1983: The world’s first commercial cell phone (called the Motorola DynaTac 8000X) sold for $3,995.
Today: An iPhone X (256 GB) costs $1,149.
This item is cheaper today even without inflation. Of course, an egg is an egg. But an iPhone X charges 10 times faster and weighs five times less than the nearly three-pound Motorola “brick.”