Soon to go the way of Tandy.
Radio Shack's European branches sailed into the sunset a decade or so ago. This may have seemed to set the scene for Maplin's High Street expansion but the underlying problem which sank Tandy remains -- hobbyist electronics has all but disappeared and consumer devices are entirely price sensitive (viz Amazon). Recent visit to Maplin proved largely pointless.
I support North London's last proper electronic hobby store in Cricklewood.