I bought two of those spiral needles from Hobby Lobby - paid $10!
I also bought some of the Fons and Porters needles from Joann's and got several in a package for a fraction of what I paid for the spiral needles. I like the Fons and Porters needles better. They are a lot thinner. I only use them for hiding threads - not for regular sewing. For regular sewing, I use the purple glover needle threader - works great.