I strongly believe in story/the idea, and I tend to believe that the story is everything. That this is not the case is proved by remakes. I am not in general against remakes, but most remakes do not add to the story, but take things away. Perfect examples are the remakes of Life on Mars and Primeval. Primeval may be overdoing it, but it does not add something more, quite the opposite, the new version has more gore, but no new ideas and the viewer painfully misses the charm, the fun, the soul and heart of the original version. This does not mean that the idea isn't still strong, but the original version is just a lot better. But as with all things: in the end it is a matter of taste and therefore there will be and should be fans for each version. I, personally, e.g., prefer the US-Version of Being Human, which is criticized by many fans of the original. I think the creators of the remake made great casting decisions in this case and the US-version has (still) a lot of soul and fun and charm. This is not (and cannot be) true in the case of Life on Mars - if something is this perfect, why change it? It is not 60 years old and outdated and even the language (and pretty much of the culture) is the same, so why bother and make things worse? So: the new Primeval has nothing on the original, but the idea is still strong and tastes differ, so a well-meant 6.
