With the exception of those who yearn for an automatically adjustable rear view mirror (available only on the 04's) you're correct, they do all look alike.
Certain colors have been added, and deleted over the years, but that would fall under individual tastes.
More 04s probably had manual tranny "issues" than any other year. But those problems would probably be taken care of by now on any used 04 you may find.
Speaking for myself, I don't envy anybody who owns a newer Crossfire. But a "Life Time Warranty" would be "sweet", since I plan on keeping mine for a long time.