Don't forget there is a new movie coming very soon and I've just read a TV serie is in preparation. IMHO WotC is pursuing a double strategy. On one side they t

Don't forget there is a new movie coming very soon and I've just read a TV serie is in preparation. IMHO WotC is pursuing a double strategy. On one side they try to pull a marvel, meaning becoming big in the media industry with movies, series and videogame (I expect to see many D& D games in the future if the movie is successful). On the other side they will try to create a subscription based walled garden in the RPG world. you're right that for the moment switching to a new system isn't really expensive, it may change if wotc manage to create this walled garden