Maybe what JonnyQuest037 means is that it was lazy for the movie plot -- which for many filmgoers would be their introduction to the TNG cast and setting -- to build on a leftover story thread from the series, and that Data's reason for finally deciding to install the chip was kind of underwhelming.
Yeah, that's pretty much what I meant. I knew that the emotion chip had been established in the show first, of course. Thanks for clarifying on my behalf, Christopher.