Yeah, as
Gresp15C said, here at BF you often get what you don't ask for. So here is my 2¢
I don't use insulated bottles at all. My reason is that the insulation takes up space I rather have in fluid. To a lesser part it adds weight and bulk that I'd rather not carry on long rides.
I am not particular about the temperature of the drink that comes out of them even when I ride in 100°F temps or better. I'd think really cold water would make me get stomach cramps when cycling hard. And I've always believed that cold water takes longer to get absorbed by your body. Since I put most of my carbs in my bottles, I don't want to hinder that process.