The only other event I could remember in the history of Apple that is remotely comparable is the release of the original Power Mac G4 towers in 1999. They were originally going to have 400MHz, 450MHz, and 500MHz models, but due to issues regarding processor availability, Apple lowered the specifications by 50MHz for each model, but without lowering the prices.

https://lowendmac.com/1999/power-mac-g4-yikes/

I have a 350MHz model that I purchased used for $40 back in 2009.

I’ve never seen across-the-board price hikes from Apple that were not accompanied with some type of upgrade.