Caramel coffee dream...

I'm thinking about taking the plunge - giving up coffee, so I played with what is supposed to me my last cup of morning java.
Caffeine-free isn't an option - it tastes like dishwater.

How can caffeine slow down your metabolism..that doesn't make any sense.
How can something so delicious be bad for you?
How can it be, according to studies, bad for you one week and then good the next?
How much coffee is too much coffee?

Now I'll leisurely sip on my blip and contemplate the plunge further...