@Tobias Joehle@twitter Actually, that Germany carries it year round just enforces the Theory that the McRib has a cult like following in the US and other parts of the world, and brings out the McRib in limited quantity to sedate those followers.
After a couple weeks the McRib drops off drastically in sales. I worked at McD's for over 10 years, and remember when the McRib would roll out and was a huge hit. Then in a short matter of time, we wouldn't even sell 10 in a day (in a store with over 1000 customers a day.. that's pretty bad). There is no incentive to keep it in store year round.