I detest coffee, but think caffeine is healthy for our brains - at least in reasonable quantities.
At home I drink a regular sized mug of green tea each morning and I'm down to half a 16 oz bottle of caffeinated soda in the early afternoon.
When we travel it's usually all sodas because I also don't like cold or bottled tea. I also don't limit sodas then as I sometimes need to stay up later in the evening and late afternoon caffeine does that trick nicely.
I just have to wean back down once we return home. I'd be ok with the caffeine. I don't like that much sugary drinks - well, I do like the flavor, but not what it could be doing for my health.
I wish I liked tea better. I like some herbal teas, but those don't have caffeine.