Why aren't there more chocolate Easter Eggs in the US?

"Irish consumers munch through almost 1,000 tonnes of chocolate at Easter and the aluminium foil could be recycled to make 1.3 million drinks cans."
http://www.irishtimes.com/newspaper/breaking/2009/0410/breaking17.htm

It amazes me that here in the US there is no traditional of large chocolate Easter Eggs (often filled with smaller chocolate eggs). Where could I get the equivalent of a Buttons or Yorkie egg in Boston? Perhaps in an import store like the one in Harvard Square. But in somewhere like CVS I just see things like "Peeps". Because I wasn't in Ireland or the UK this year before Easter, I don't have my usual collection of large chocolate Easter Eggs this year. And Easter does not feel the same without them...



[Image from: http://www.irishongrand.com/detail/509]