Ceramic Art London within an International Context

The two big shows for established makers in the UK are COLLECT, run by the Crafts Council at the Sattchi Gallery, and Ceramic Art London (CAL) which is run by the Craft Potters Association. The CPA also run a second show titled Ceramic Art York. All three shows are international, but how do they compare with other international events, and does it always pay to be part of the international circuit?