Don't know about "slashing" prices. I rang the UK Powerlogix dealer to get a price on a dual 1.2 upgrade card. I'd seen the US price on their website - $1,099. The price in the UK? - £1,099. I double-checked with the guy on the phone; when he said it was the correct price I asked him if he knew why it was effectively 50% more in this country. He didn't know.
I don't think they'll be selling many cards here somehow - I hope not anyways.