Precise and Focused Searching. Simplifying usually means making less powerful. That translates into incomplete or unfocused results. Attorneys can't live with getting some results. They need to have accurate and useful results.
Time is also money, lots of money.
The more focused your searching, the faster you get to the relevant results without having to spend time plowing through junk. Lexis and Westlaw provide extremely powerful search mechanisms and built-in features that assist searchers in accomplishing that goal. Web searching with Boolean operators doesn't provide all the features of Lexis and Westlaw. On the Web you are not always sure what you are searching in, or you may be limited to very recent material. Lexis and Westlaw give you the ability to choose the most specific database that suits your needs so you don't waste your time plowing through irrelevant material.