I used Altavista till Yahoo bought it. Now i only use babelfish, and check for my sites ranking every once in a while. Maybe 1 day we'll barely remember google. (Unless people has a nostalgic desire to search for spam )
Google has become a standard... Only if Google can't find something, I turn to other search engines like Yahoo and Altavista.
Like you the last time I used it just for search was 5 - 6 years ago if it pops up in my logs as a natural search I will investigate other than that is is the big 3.
Hardly we can claim SEO to be our primary reason to start googling. Google is much more powerful in all respects - that's all.
Altavista was the first search engine I was told about in school. Then I learned about Yahoo. And then I grew up. Not using any of them anymore. Just Google.
Well it seems that if someone starts a new thread of "How many of you use Google?" will get thousands of positive answers! Ok I was wondering of how many of you do not use Google?