Hmm. I like my 10 speed.

I have a 12-30 and 11-25 in good shape. I use an 11 speed 50/34. That bike will get up some hills.

I don't put too many miles on it between all the other bikes but I'd hate to be in a position where a single component failure means upgrading the whole groupset. I don't think it will be wearing out any time soon, it doesn't get the miles.

It's a shame though, such a good groupo that I've never felt any inkling of desire to change.