As much as I love Campy stuff, it is too hard to get in a rush (always special order) and too high in price (compared to a similar part from Shimano) for me to bother anymore . A Chorus 11s cassette is $120-140USD on Amazon, a 105 cassette is $40. I can get a SRAM 11s chain at the LBS with quick link for $20USD, even Amazon I'll pay $40-60USD.

My Di2 hydro disc group costs less than the Chorus mech disc set.