Microsoft has announced it will close down the Xbox 360 Store next year.
Specifically, users of the Xbox 360 console will no longer be able to buy content directly through the console or through the Xbox 360 Marketplace site from July 29th 2024.
Players using their old Xbox 360 consoles after this date will still be able to use all their previously purchased Xbox 360 games and DLC.
Source: Microsoft Closing Xbox 360 Store In 2024 – Dark Horizons