The usual reason - even though I really liked it, there was always something new to try.
After some experimenting with other products, I went back to my original combo of CK and gel. While most curlies seem to hate adding water to Day 2 hair, I just spritz, smooth and scrunch. I find I need the spritz and scrunch to completely revive my hair.
I still keep Tweek in my purse for windy days. It is perfect for taming the mess.