I definitely understand where you're coming from. One can make the argument that a search engine is used with an incredible amount of frequency for most people – dozens of times per day. It
should be worth a lot.
One thing that's great about search engines in terms of entrepreneurship fundamentals is that is is such a massive market. You only need a fraction of a percent to be a viable business, I'm sure.
I can also understand how underpricing a product can be a big mistake. Somebody who wants this kind of product has already made the conscious decision to pay. Pricing a product too low can be a signal that it's not a good product.
Perhaps one might say that this is an example of how complexity and cost of production is a bit detached from the customer's willingness to pay. The most complex software product, the operating system, is essentially given away for free. People are mostly not willing to pay for it, even businesses don't want to anymore. On the other end of the spectrum, there are SaaS products with very low levels of complexity pulling in a lot more than $0.
If it's truly barely breaking even at $10/month, that fascinates me. It must mean that search engines have to do a lot of computing.
In any event, I wish you the best, because the features do look cool. I like the idea of being able to set site preferences (e.g., when I search for a movie I might like to see Wikipedia over IMDB).