Doesn't having 5-7 pounds of liquid in your gut all the time bother you.
I'm very active physically and I can barely tell the difference between wet and dry. In my case I carry about 1500ml during the day which is just a little over 3lbs. Considering that I've lost almost 60 lbs in the last three years makes that seem insignificant. Now granted, a really small person may notice the extra weight a lot more. BTW, a lot of PD patients go dry during the day so for many it's not even an issue.
To me the reason I chose CCPD is so I can hook up at bedtime, unhook in the morning, and then I'm good to go. I can work out hard and not worry too much about my diet or liquid intake. A side benefit is that I can do manual exchanges if the power is ever out for an extended period or if I want to go camping in my RV.