I am mad! I led a 33 mile ride today, which was abruptly ended at mile 13, when my shifter cable broke. AMC always requires 2 leaders, so I knew the group was fine with the other person, but I was feeling good and the group was nice. Amazingly, I texted DH, who was 1/4 a mile away, on his bike! He jerry rigged the rear derailleur, so I could get home, where we found a whole plastic piece missing. The internal cable routing is fussier. So, we went to the LBS, to see if they had the part, but DH was already trying to convince me to get Di2. I refused to get electronic shifting when I bought the bike. Then, when we went to France, I had it on my rental. I liked it, but the earth didn't move. Long story short, I am switching over. Personally, I think it's a lot of $ to do this, but DH says now he won't ever have to change my cables again.
Now watch, when I go to ride my Guru tomorrow, something will break. I did have 2 nice emails from other riders, thanking me, which was really nice.