I use the knock-offs of the Scunci ones - the knock-offs were only $2.99 for a 6-pack at Walgreens and they work GREAT for me. What I do is use them to refresh curls. I'll spritz hair with a bit of water, put some in for an hour or so, and voila - improved curls!
Love 'em! I got a couple of Scunci ones to round the collection out to 8. No sense in spending more money if what one has that's cheap actually works. If it didn't work that would be a different matter LOL!