Yes, me too, which I think increases the value. If these 7 installments change the maps significantly and just do it as escalations and not stories (like Patient Zero) then I think that’s good quality content for the price. If they are like the Deluxe Escalations, then maybe less so, though that pack was $30 as well anyway.
As others have said, in the end you decide what it’s worth and can wait for video reviews or those of us who will buy it on day one to share our thoughts. IOI aren’t forcing you to do anything.