Poll: how much are you willing to pay for a premium newsletter about best practices on digital business strategy?

I'm planning to start with a newsletter on topics related to business strategy, product strategy, product management, and strategic partnerships, specifically for digital companies. Diving into best practices which the entrepreneurs, product managers, product strategists, and corporate development managers can directly use in their daily work. Blending my 25+ experience within software oriented companies (both startups as well as big corporations) with the latest models, tools, and best practices either coming from web research or books.