I hated my dealer plate frame, it was a big chrome Cadillac frame. I looked around but didn't find any that I really liked, so I wrapped the dealer one in 3M di-noc dry carbon look and I really like it. It's essentially "temporary" until I find one I really love, but it's actually growing on me.
Picwhore:
As far as Nismo goes, do what you like. There are a ton of factory Subaru WRXs with a bunch of factory STI options on there. STI on the seats, STI on all sorts of stuff, guess what, it's not badged STI. It's not my style to do that, but again, it's just a license plate frame.