Cheap shoes

There are some things in life that I do not understand.

Usually, more expensive = better quality (= more comfortable).
However, when it comes to shoes, my experience has been: cheap = comfortable!

For example, my Prada heels (see here) are pretty to look at but hurt soon after I've put them on and I can hardly walk in them. But these cheap shoes from H+M are so comfy, I can walk in them all day. I got them in black and brown, and I feel like getting back-ups, that's how impressed I am. I can't believe it! I had no idea. Have you ever tried H+M shoes?