sealed NES kirby -- bilingual/US/France version vs. US version?

There are a ton of sealed Kirbys on ebay at a reasonable price, $20-$40 -- the only problem is they are the bilingual versions with english and french on the back. Are these real? Are they worth less? Or should I just search for all English?

They are the Canadian version and aren't worth more than $10-$15. They are extremely common and are always listed on ebay. The US one is much rarer and goes for $50+.