I think they are very classy - not obnoxious "blingy" like a lot of western wear these days.
I don't use polos, but I'd say if polos are going for $15, add $7. Something like, $21.99. People are going to be more willing to buy something at a price like that - upon first glance, someone's going to say "Hey, that's only like 5 bucks more. Cool!" Something about the $0.99 makes people round down instead of up.
I think that's going to be your best marketing tool.
They are really classy and would add just a bit of flash in the ring, and I think the English world needs that bit of bling. :]