This is not because it is data not worth paying for but rather because I usually start thinking about new tech at the start of a new project, and I only start a new project once every year or two. An ongoing fee for this type of aggregator seems hard to justify.
A possible alternative would be to open up the data for free and supply affiliate links to related books, tools etc.
Maybe it's just not aimed at a user like me.
All the best :)