Seeing the refit was easily my happiest moment in the whole movie. Wasn't disappointed in the 'repeat starship' approach in the slightest, since none of the other movie-era ships looks as good (though RELIANT is nice from some angles.)
Even back then I knew that the expense of a new model was prohibitive, especially with no guarantee it would be amortized over more than one other film.
That links to one of the biggest oddities in all of trek finance for me, that Par paid for a really elaborate E-e model in FC, only to dispense with the miniature completely (except for scanning purposes) on the next film. They could have at least hung it up over the area where they greeted the little people at the start of INSURRECTION, just to give it a bit more screen time.