>I'm legitimately worried about the long term future of my hobby (PC gaming)
The equipment required for gaming loses value very quickly. Old 7970's released in 2012 command amazing resale prices in 2018. Everything else in a rig back then is now worthless apart from scrap metal.
GPU's are one of the biggest expenses for gaming, as a hobby it got far cheaper. The fear is unfounded and this is typical alarm-journalism.
Now if only CPU's held value 6 years from now.