> For instance, if you search for “buy ps5” they don’t need a secret profile to show you ads for a PS5.

Sorta. The real money is from competitors. How much would Microsoft spend to convince someone interested in a ps5 to to spend $500 on an xbox instead? Sony wouldn’t spend as much as Microsoft here except to outbid them out of that ad.

And you’ve just shown your hand at having $500 to dispose, maybe a local casino ad would fit well here?

While the geographies of gaming consoles overlaps well, it doesn’t for automobiles, restaurants, service providers (mechanics or dentists or whatever).