Last season would've been the first in almost 30 that you were in the same division - I'm surprised they're still on your radar.
Now that we live in the age of the interweb it's easier to build up rivalries with teams from slightly further afield - I'd say over the last 10-15 years we've spent more time dissing the Fakes, Livie (sic) and Falkirk than Morton.
Oh, and did I mention that we had more fans at Fir Park for the 77 cup tie than people who have ever lived in Motherwell? @Captain Saintsible