I own a site that on which I "practiced" SEO. It isn't a real business. I only make money from it by putting Google AdSense and right now it makes just under $100 per month and growing, although I no longer practice my SEO on it.
Currently, there are 300 unique daily visitors. Right now it is just a content site. The site ranks in the top-10 for a bunch of competitive 1-word and 2-word queries in its niche.
It is in the medical/health niche. How much would such a site cost in theory? Potentially I'd sell it with the "secrets" for how to get it to rank for a bunch of other words and get way more traffic.
And is there another way to monetize it? Would healthcare professionals be interested in such a thing?