Help with wheel choice 15" or 17"

I think I've narrowed down my wheel choice for the dart to these. ET Classic Five wheels.
These are sbp and available in 15" and 17" in several different widths.
They are quite expensive, but these are the wheels I've always wanted, and I'm going to find a way to come up with the cash.

But need opinions, should I go with 15" and a fairly stock size tire, or maybe go for the 17's for a more modern look ?

They will look good either way, just not sure which way i want to go. With the cost of these wheels, I want to get it right the first time.

WHat cha all think ?

There's also a cost difference of about $60 bucks per wheel more for the 17's