Most users don't want control - more things to think about takes energy and time. The users that do want control, however, are likely to be the users championing your product. Take a standard transmission in automobiles - the extra control it gives isn't necessary, and a large number of consumers prefer the automatic transmission. But the racecar drivers and car lovers are much more likely to want a standard. If you have intelligent, invested users, they'll want control options, and they'll usually tell you what they should be.