Google will probably continue to stay on top (if they don't keep putting out Google Instants) Google Instant only gains Google dominance. You may not like it,

Google will probably continue to stay on top (if they don't keep putting out Google Instants) Google Instant only gains Google dominance. You may not like it, but some people do. That adds to Google's stickiness; those people are now much less likely to switch search engines. If the $.12/query rate is to be believed, that stickiness is extremely valuable in the long run. As for those that do no prefer Instant, I suspect they didn't have any trouble disabling it. As a nice little bonus, Google gained notoriety for their Instant search. This means anyone else who implements it in the future will be riding in Google's coattails, and will be much less likely to realize the positive effects that Google did. If it were up to me, I'd have Google churning out more of these features. I believe it's already the case that "search" is a commodity, and it's now the bells and whistles that are the point of competition. Google already has a huge head start, and they now need to maintain it.