I just got to hope there are still parts around to fix it later on. I read that fuji no longer supports models older than the 3rd and final model. Is that true?
I contacted Fuji Germany some time ago, they said they'd service my GW690 (first model). But really, you shouldn't worry about it. Fuji recommends servicing the shutter every 500 rolls, some sources say 1000. The camera will not magically stop working once you hit a certain number; according to Fuji, the shutter speeds may become inaccurate and therefore have to be recalibrated.
Just follow the golden rule: if it ain't broke, don't fix it.
And the sign said, "long haired freaky people need not apply"