Good on you. Most other customers of your computer manufacturer aren't the same.

But for most customers, any brand will suit them. Getting rid of advertising wouldn't really have an adverse effect on them, they'll just buy whatever's at the store and it'll be fine. (As long as there are adequate consumer protections.)

You might've never worked in retail I guess... Most people, if someone they trust chose for them, sure they wouldn't be able to tell the difference. But also, picking a "reputable brand" is a big criterion. By which most people mean, a brand they've at least heard of, preferably in good ways.