It's also pretty ideal feature to keep around even if it is mostly unused.
1) It isn't very complicated -- it doesn't require a lot of code that is going to rot.
2) When it is used, it's cheaper rather than more expensive.
3) It only "clutters" a UI that isn't actually seen that often nowadays -- you have to actually go to google.com, rather than just typing in the browser bar -- and isn't particularly cluttered.
