Does Steve need an ad to remind him that he likes the BMW 3 series? No doubt one of the first steps he took after his promotion was look up the prices, or finance offers on BMW 3 series, perhaps create a spec and then talk to his partner about it if he has o e.
The thing is if there is something I want to buy, or own at some point in my life, I don't tend to forget about it or need some reminder from a targeted ad. If it's something I really want I'll usually think about it daily.
On the other hand, there could be something that I need, and have never searched for, that I have forgotten about such as going out and buying more toilet roll.