So I was riding my bike this weekend and my left shifter broke. I guess this is a common problem with 105s, so much that the LBS said it was a defect/design flaw. I can't warranty it cause I got this bike second hand. They were trying to convince me to just replace it for $175, with the same defective model, which I don't understand.
What should i go with? I'm thinking get a ultegra 6600 or dura ace 7700 off ebay, dedicated double to avoid the double/triple flaw in the 105s. Could I replace it with a RIVAL? Those seem a little cheaper, and should be shimano compatible right?
Basically I just want something that won't break!