The Hills district, Baulkham Hills, Castle Hill, Galston, Beecroft, Kellyville etc associate themselves as being West. but not 'Blacktown' west. They're snobby westies
. That's one reason GWS (based in Blacktown initially) is struggling.
If the Western Sydney Rams were based in Parramatta I think they could link well with that region as well as the region out to Penrith and across to Campbelltown. It's worked for the Western Sydney Wanderers who have managed to Unite all of Western Sydney under one banner, something I didn't think was possible a few years ago.