IF they all came out, I would buy them all, but that's a big if.
Reason being, even though not every movie was good, I hate having a partial set.
If they planned to release them as a series over months or years, then I would likely not pick them up at all thanks to places like Entertainment Store (Walking Dead) falling through on their promises.
Nothing would make me angrier than dumping a couple hundred bucks into them and then not being able to complete the series.