google controls the portals through which many people search. Defaults will always be google when people are using android and or chrome. Yahoo, infoseek or altavista never had anywhere near a grip on people like google does today. It takes effort to change now, while in the olden days you just had to change your 1 start page on the browser, things are a lot more embedded and thus customers locked in. Thinking it will switch over to a better alternative like it did back then, purely because it is a lot better, is a bit naive I think, unfortunately.