I too have bought many irons and been disappointed. I finally remembered that we had mom's old iron in the garage that we had saved for workshop use. (Like the one mentioned with a black and white fabric cord) I drug it out last week and it works great! It actually gets hot! I love that. I absolutely hate the newer irons. I have had some pretty dang expensive ones and they really are stupid in design and heating ability.
My mom used to have things worked on with they gave up. I wonder if there is anyone around these days that would do this? Crossing my fingers if mine ever gives out. I love this iron!