Microsoft still suffers from the need to support Windows XP well after its expiration date, so you are drawing a different schedule for Windows 7 users.
Corporate and enterprise customers can only pay for security update support until January 2023, or about three years after Microsoft has stopped making regular system fixes, and the price will increase between 2020 and 2023.
This may seem like a long time since Windows 7 was launched in 2009. However, it is worth noting that Microsoft has ended an extended support for Windows XP in 2014, and has maintained paid support sometime after that.
