I am enjoying this thread as well, please keep serious and non-serious suggestions coming...
-Cheaper eventually (duh)
Things I don't care about-
Soy, GMOs, gluten, 'organic'
Would be interested in future solid food options. But I have a hard time imagining what this might be. Someone on a review somewhere described eating mealsquares and how eventually they got disgusted with the taste. I used to enjoy myself a cliff bar, but they are way too easy to eat like 10 of them and not feel satisfied. It's easy to imagine soylent could make a delicious bar-type food, it's hard to imagine it satisfying my hunger in the same way a meal's worth of liquid does. So am curious to see how that might go.