Yes, they are nice and do provide warmth on a cold day. However, even though hosiery isn't exactly "in" these days, I've always enjoyed the feeling they have after freshly shaving my legs, a warm bath and some lotion and slipping on a top shelf quality pair of tights, hosiery or nylon stockings. Feels like I'm pampering myself.
I hate them so much. I'd rather wear leggings or stockings really, for some reason tights are just super uncomfortable around my waist. I guess wearing leggings or stockings is for when I wanna wear a dress or skirt but it's too cold to go out barelegged or there's too much leg stubble or something.