I've had an MSR Whisperlite (non-international) for at least 8 years now. Use and abuse it regularly; dropped it, stepped on it, had untrained goofs try to light it and subsequently panic and toss it in the creek, etc etc etc. Still haven't had any need to pull out the repair kit. Only maintenance it's ever needed beyond an occasional soap and water is a pair of pliers to bend parts of it back into shape.
WTB 1981 B1 Gillette razors
Tradere Disciple - OC-00145 & SB-00325 (slant PENDING RELEASE)