The Raspberry Pi Foundation has decided to permanently drop the price of the 2 GB RAM version of the Raspberry Pi 4 Model B single-board computer to US$35. This means the board is now the same price as the 1 GB RAM variant, while the Raspberry Pi with 4 GB RAM costs US$55. The permanent price cut is apparently part of a birthday celebration.
https://www.notebookcheck.net/Raspberry-Pi-4-Model-B-with-2-GB-RAM-receives-permanent-price-drop-to-US-35.454882.0.html