Why is it that people think that the Crossfire has "expensive oil changes"?

It uses more expensive synthetic oil, yes, but it also doesn't need to be changed that often so your annual oil change costs are really not much more than regular oil that needs to be changed more often.

Frankly, just working on dealer oil change prices and specified oil change schedules, the oil changes in my 300C costs more annually than my Crossfire.

As for other issues, I've had one electrical problem when I bought my car, it's documented on one of the first posts on this forum. Other than that, I've not had any problems with my Crossfire after that. (knock on wood)