No, the customer wants a button that does a very specific thing.
He can’t tell you what that is, though. You’re the expert!
Also, can you put in more ads? And make it so the users can’t close the tab until they bought something.

I’ll be honest, this sounds interesting, but I have no idea what you’re even trying to say.
Where does the $2700 price come from?
Does it support Linux or not?
Are you happy with it or not?
What’s LKMS?
I’m really struggling to even parse the basics from your post.

Why don’t you just let the Invisible Hand of the Market roll the boulder uphill?