I get you, I get you. If our dear MC, uh, I mean our protagonist realizes what he wants and is happy then it should all be good...
It's just that he starts of as the kind of character that evokes a powerful, instinctual, need to protect him from the evil, dirty world around him and letting a certain someone have his way too much feels like failing that need.
... or maybe I just think that (s)he is cutest when you only grab upgrades up to a certain point and I'm rationalizing to justify my own preferences. Who knows, really? xD