People writing novelisations don't have a finished film to work from, just a script (which can change in all sorts of ways on its way to the screen) and maybe some concept art. They also have to add scenes because a movie directly turned into a novel would be rather short.
"I ... see your point."
Aside from my quip about it being easy to get because it conveniently removes Decker without killing him and allows Kirk to reclaim command of the Enterprise for good, I will admit it is kind of odd how Decker goes from zero to this being his life's ambition so quickly.
I mean he's realized the truth of V'ger for all of maybe two minutes and then suddenly he's telling Kirk that as much as Kirk wanted the Enterprise, he wants "this"......despite the fact there is no clear cut answer as to what "this" is going to be.
Didn't Decker want the Enterprise just as much as Kirk? Wasn't that the reason why he resented Kirk so much? Suddenly the fact he might be reinstated as Captain once this V'ger thing is over doesn't matter to him at all? Even if it wasn't the Enterprise he would have almost assuredly gotten another ship.
Maybe his love for Ilea blinded him.......Who knows. But it did become his obsession pretty quickly with little solid info.
Exactly, Decker's love for Ilia and wanting to join with her can be argued as motivation, but that's speculation, at best. When Ilia got fried in the first place, Decker didn't fall to his knees and start weeping in a bucket. Brief annoyance was how he expressed his grief. All too brief, indeed.
It's interesting to me in one way that V'GER would be incapable of aspiration without killing someone. On the other hand, this notion of the Paramount importance of Humanity and its ability to overcome every kind of obstacle does sort of make it the obvious Catch-All for V'GER's problems.
But couldn't V'GER be educated, instead? Couldn't it be programmed to emote, if that's what it takes? I mean ... this machine does seem keen on dispatching yet another living person to satisfy its "insatiable curiosity." For a creature of "pure logic" and "knowledge that spans this universe" it doesn't seem very logical to me.