IMO, unless you can get US Ellipsoids for cheap, I would rather shell out the extra bucks and get some used Euro Ellipsoids off Ebay. Definitely worth the extra light output.
Trick is to look at German and England Ebay as they have some cheap ones all the time. Shipping can be a pretty penny but the overall cost can still be less.
Of course if you don't mind spending $, you can get new ones at Abraham Motorsports.