Before you FR-Sers jumps ship, consider that it is a $1315 difference. A grand isn't chump change. OEM Navs are normally mediocre, and HIDs are more bling than function. That money could put you into a good set of rims, or put towards a great set of rims (Volks). Not to mention that will put you half way towards a great set of coilovers, or one hell of a stereo system that would put the BRZ's to shame.
So don't stress out too much.
