Second, I like (real) food. I like the taste and the texture and the smells and everything that makes yumminess. Why in the world would I give it up?

This is totally a valid objection, but not a universal one, for what I suspect are typical-mind reasons. Personally, I also like food, but not so much that it feels worth the effort to me, at least on the margin. I'd happily use a Soylent-like product for most meals to save time, effort, and/or money, and leave "real food" for social outings, special occasions, etc.