If you're doing market research and your market is the set of people who would buy an "out-of-the-box-no-geek-only" solution, why are you asking on Hacker News?
What do you mean by "sandboxes each site/session/page"? Which one? You can't isolate each page from the others in a browser for the non-geek as people expect login information to persist between tabs.
What do you mean by "Runs adware/spyware on each request"?
There are problems with bundling Tor as well. The non-geek is not equipped to understand the caveats in its use, and if you label it with a big easy-to-understand "privacy button" then you've engendered a false sense of security which does more harm than good.
But no, I wouldn't pay, and I would advise my non-geek friends not to either (not that they would anyway what with all the free solutions around). If you have to pay, it's likely closed-source, which is a priori less secure. However, you should know that even if there were a hungry market waiting for you, what you want to do is a Hard Problem.