Are any shifters "repairable"? ,even old thumbshifters were'nt something you could take apart-or more accuratly put back together.Down tube friction shifters were probably the last and there basicly was one moving part so you would'nt have to repair it anyway.All in all shimano does have a pretty bulletproof line of shifters , even the cheap stuff has some long life.All that being said 200$!-if i need a watch i wo'nt spend that , but , if i can't tell what time it is at the right moment on a climb i wo'nt have a problem getting to the top.You could try and find a used bike for around that.Good Luck