To be able to read your blog posts people have to stop reading someone else's blog posts. Someone's posts they've maybe already been reading for a few years now.
People's time is limited.
To be able to watch your videos people have to stop watching someone else's videos. Someone's videos they've maybe already been watching for a few years now.
Again, people's time is limited.
To be able to buy your product people have to give up buying someone else's products. Products they might need to survive.
People's budgets are limited. Just like people's time is limited.
Either way. Your reader's, listener's, viewer's or customer's resources are limited.
Make sure you never forget that...