In August, bids for a sealed iPhone from 2007 skyrocketed to $45,000, nearly 75 times its original price. Items related to Apple’s co-founder Steve Jobs are also highly sought after.

To gauge that, I got my hands on an iPhone 6s — yes, those can still be found in refurbished or even sealed state — for a fraction of its original asking price. Remember, the iPhone 6S itself ...