The Nintendo Switch has been selling out at most retailers worldwide, but there’s still some stock for the grey joy-con version of the console to be found. Nintendo Store UK for example is still accepting pre-orders for the grey joy-con Nintendo Switch. However the red/blue joy-con version of the console is in extremely high demand, and is selling out everywhere.
For example here’s an image from the UK Nintendo Store, as mentioned previously, the grey version is accepting pre-orders almost a week after they went live. The red/blue version went out of stock within a day.
As you’d expect, Nintendo would have the most stock out of all retailers but that didn’t stop this version of the console from selling out quick on their own store.