While Valve tries to keep the dates quiet the reality is that it’s all but impossible to keep everyone from marketing their respective games.
Get ready for the black friday deals which tend to be incredibly good
— HARDCORE GAMES™ (@HardcoreGamestm) October 20, 2019
Black Friday is the best day for adding games to the collection.
Black Friday is also a good day for hardware procurements. At present additional RAM is needed for some machine and more storage is generally needed.
Video cards are popular holiday gifts and and a modern card can often improve gaming considerably. Older Fermi cards can be replaced by modern Turing cards and even the basic GTX 1660 is markedly better at a budget friendly price.