Re: fade from the scene,
It just means that they fade into the background of the market. Lots of toys are really popular for a short period and then some other toy comes along which is suddenly everyone's favourite and that last popular one drops back into just being another toy on a shelf of the toyshop.
It's not literally "a scene" that you can look at. It's the same way that we talk about the "music scene", the "art scene" etc. It's just the current trend, or area of interest.
Paolo Nutini is the latest male solo artist on the music scene.
For a while, Damien Hirst was the biggest name in the art scene.
Remember - correct capitalisation, punctuation and spacing make posts much easier to read.