Cream is a nice clean pure fat . . but true, if I ate too much it would become a sugar but it is better than a packet of biscuits. It's amazing how full you can feel on a spoonful of butter, macadamia oil or cream. My S-I-L has a shot glass of Mac oil or some butter as his only meal per day. I am not that disciplined.
I use it occasionally for sauces, or in a casserole. Funny you should ask, as I have just made a chicken casserole, which needed cream in it. It is a family favourite, and was a special request from my son.
I use cream a lot. I often use it on the side of casseroles and curries to entice my children to eat (they love it mixed with rice!). It's also the star of my potato veg bake that I do at least once a week. I actually wish I had started using cream in cooking sooner!