I have the thin ones (aqua) and love using them. I do a lot of hand work and they are easy to use, easy to find if you drop one.
I did buy the purple ones first and don't care for them. They are thicker and heavier.
I don't iron over pins either but it's worth the cost to use with hand work, binding, applique, etc. They'd be a great stocking stuffer for a quilter.