Acrobat certainly has more powerful tools for manipulating PDFs than Preview does. For viewing PDFs, I simply use Preview, but significant text-editing, page formatting (rotating pages, inserting pages, etc.) is most easily done by firing up Acrobat.
I haven't used Acrobat since I got my first Mac about 9 months ago. I just use Preview. Why would you bother to get Acrobat? (not sarcastic, but an honest question).
Well it might be useless for you to get acrobat...
but to us designers and people that require to open and edit documents all day long we only have Acrobat as a choice. We are used to it, we like it, it has other software does not have, etc.... Creating a document is not as simple as just creating it. With acrobat we have tons of options and tools that we NEED in order to get what we want or what's required, and you don't have those options in preview.
This is like comparing "Windows Picture and Fax viewer" with photoshop.
You're a designer, and you use Acrobat to create PDF's?
I'm also a designer who "opens and edits documents all day long" and I prefer using inDesign and/or Illustrator when creating pdf's. Out of curiousity, does Acrobat allow you to control the resolution of images when creating/saving pdf's?