Replying to How long did it take you to graduate?

How long did it take you guys to graduate from college, Im a senior now, after this semester if everything goes well ill only have 15 credits left so should be on time.  Only thing is im hoping to do a student exchange program to MSU or U of U (idealy), neither of these have the one required major class I have left to do.  I've been thinking of still transfering then taking the one class online or at a different school and have the credit transfer back over.  Anyone do something like this? and do you think its worth it?