Crazy, right? I paid $330 new at Microcenter in January 2017 and then I sold it on ebay October 2019 for $250 plus shipping. I lost about $100 but was able to use the crap out of the processor for 2.5 years. Seems like a good tradeoff to me!
Because CPUs are basically locked to one motherboard generation, for a lot of people it is faster/easier to just swap a i5 for an i7 and not have to worry about doing a complete system rebuild just to get the latest and greatest. Time and energy are a currency also