I've owned a Triumph for 3 years now. I agree that there is no comparisom with Suzuki in terms of available parts and the strength of a dealer network.
As has already been said, I also buy parts from the UK and the USA at about 1/3 of the NZ price, so I don't see that as a bad thing. If you need something in a hurry, IME - AMPS are pretty damn good.
Regarding the question over warrantee claims, I would say that Triumph is better than most and on a worldwide basis, excellent. I have had 2 minor issues sorted out without any delay at all.
I am on a Triumph only forum and I have been amazed how warrantee claims have been accepted even after expiry of the warrantee (due to low mileage).
Generally it is the dealer's relationship with the manufacturer that dictates whether the manufacturer will play ball or not.
Get yourself a good dealer (talk to the service manager to check he's not a complete dork) and you'll br fine
PHEW.....JUST MADE IT............................. UP"
Bookmarks