> I just can't see even the best search engine either costing that much to run or providing that much value.

How many thousands of hours did you save by using Internet search, compared to having to go to a library and find that information in books?

Even if you value your time at some laughable amount, like $1/hr, Kagi (or any other alternative) would still be worth it.

Also, $10 just isn't what it used to be. It doesn't even get you a fast food meal anymore.