As far as Internet numbers go, 700K signing up to receive updates isn't that amazing.
One representative example, Subscriber acquisition costs for Dish network: "DISH TV SAC was $822 during the year ended December 31, 2019 compared to $759 during the same period in 2018, an increase of $63 or 8.3%." [1]
"We lost approximately 511,000 net DISH TV subscribers during the year ended December 31, 2019 compared to the loss of approximately 1.125 million net DISH TV subscribers during the same period in 2018. This decrease in net DISH TV subscriber losses primarily resulted from a lower DISH TV churn rate and higher gross new DISH TV subscriber activations." [1]
[1] https://www.marketscreener.com/DISH-NETWORK-CORPORATION-4870...