They're usually pretty poor but I don't mind. I can usually get something from them. It's not just an image to me either. It's a picture sent over radio waves that I collect from a wire stretched along my back garden. I still get excited to see the picture forming on my computer screen. It's different every time. Even the same picture on a later transmission will have very different interference patterns overlaid. Maybe the WEFAX transmissions could be a source of entropy.
The other obvious benefit of these transmissions is to provide weather information. It's good too. Accurate and up-to-date, and talking of weather, it's changed significantly enough for me to start receiving WEFAX images.
That's how I know that Spring is truly here.