Answer:
The biggest difference between Christianity and all other world religions is that Christians believe when they eat the Eucharist, it is really Jesus' body and when they drink the wine, it is really his blood - AND it <em>remains </em>his body and blood. Other religions throw out the bread and wine after they are finished handing it out during Mass. Christianity is the only religion that believes that is really Jesus' body and blood forever, and it should be finished so as not to leave Jesus sitting in a goblet or dish.
Answer:
I love to dance! It's the best thing in the world!
Going on the assumption that it's about costs greater than benefits or something similar: People will do less of an activity when the costs outweigh the benefits (or the cons outweigh the pros) because it simply isn't worth doing; it causes them more harm than good