craftgrrl | Beginner Knitter Question Overload

I have this intense desire this fall to knit a scarf. I have looked through the community memories and I still have a few questions.

First.. I know how to crochet (beginners level). I do not know how to knit. Knitting looks about 400 times harder than crocheting. If I crocheted a scarf would anyone know the difference? Does it look the same when it's finished? Does everyone knit now instead of crocheting because it's the "cool" thing to do? or is a superior craft? Has crocheting gone by the wayside?

I guess I am just overwhelmed looking at the tutorials for knitting with all of the terms and abreviations that confuse me. Should I put in the extra time and learn to knit? Is it worth it? Does it come pretty easily once you "get" it?

TIA!! :)