So if they can get an uneducated person to buy the more expensive products, are they really ripping people off? It's up to the buyer to know what he is buying, and not blame the seller if they are so uneducated as to buy the more expensive product and lose their money doing so.
It's called capitalism. When you sell something, you always try to get the buyer to pay as much for it as you can. It's up to the buyer to know enough about what he is buying, to know not to buy something he doesn't really need. I don't see it as a scam exactly. I see stupid people doing what stupid people do.
Caveat Emptor (let the buyer beware)