I think the 1 Edition will only sell well if it's maybe $1000 over the regular CLA250..I removed the Mercedes CLA Edition 1 U.S. pricing (estimated) I posted.
According to the article below, it seems like the U.S. be getting the Edition 1 CLA, no release date or pricing announced. Hopefully it will happen soon!
2014 Mercedes-Benz CLA to Launch in Europe with Limited "Edition 1" Package - WOT on Motor Trend
There aren't really that many differences to justify a higher price.