5 a day is nowhere near light - try 1 or 2 a day.
No, not over-hyped at all.
I think there are better things you could spend your money on - cigarettes are expensive. Also, it smells (which is actually one of my main concerns - shallow, I know, but I dated a lady for 3 months a long time ago and she stunk like an ash tray), can cause extremely damaging health complications and harm others in the process.
Then again, everyone is free to spend their money, life and time as they wish. I just hope my children don't pick up the habit.