Should I buy a full mechanic tool set or individual ratchets?

Reviewers we read suggest a complete set like the Craftsman 189-piece or DeWalt 247-piece gives the best value-per-tool for a first kit, since it bundles three drive sizes, sockets and wrenches. Buyers who already own sockets and just want a better-feeling tool tend to add a single premium flex-head or low-profile ratchet.