Troll, troll ...
I think we have two schools around here, mainly:
Those who have it and like/need it
and Those who don't have it and thus don't need it
Some exceptions remain, like: 'I had it in another car and didn't need it in this one'.
From my stand point, on a day to day basis, I like to:
- browse my music collection/albums (more than 100 songs for now) to choose the right music.
- or use the fast and good nav (yes it is! and as VailM3 said, living around 4 different countries over here, it is working very well and it is quick to get GPS signal due to good antenna)..
- I also like to import music
- etc..
You need to try it and make your own opinion, if you need it or not considering your use.