When the hairdresser did my hair, I think she used a curling wand, and a number of people have said that it's easier to use/nicer curls/longer-lasting than using a traditional curling iron. But I am not sure it really could be - plus, couldn't you just wrap the hair around the outside of the curling iron and use it as a wand instead? I tried that, and I still couldn't do it like the hairdresser ,but wasn't sure if that was just me being crap, or whether it did mean that a wand is better. The only thing I could think of for a wand is that it might have a longer barrel because it dosen't need the clamp. And the tongs type might give smoother ringlets if you pull the hair through. I do find it hard to unwind the tongs type sometimes whereas the wand might be easier in that respect?
And is a more expensive one any better than the cheaper ones? Things like drybar or GHD or cloud nine have some v expensive ones, which might be worth it if they worked, but otherwise, any reason not to just use a cheaper one?