If you want to see "good" targeted ads, go to Amazon. They have a vested interest in having you return again, so they put effort into finding a product that you will actually enjoy.

I highly doubt the average advertiser online cares if you return or not after the initial purchase. Their motivation is not to match you with something you want or will even like, but with something you will buy. It is therefore in their interests to use the targeting information to craft as manipulative an ad as possible for something your demographic can be tricked into purchasing.

That's why, when ABP fails, I always see half-naked swordswomen advertising yet another click-and-wait castle building "game". It's definitely not something that I would enjoy; it's a slot machine with virtual payouts that costs real money. If I payed $10 into it, would I be happy with myself the week after? Compared to e.g., a novel I might like, spend as much time on, but have a decent memory or experience that adds to my life.

If I thought advertisers would use my information to find me things that are useful or actually a good experience, I'd be more receptive to it. I'd still refuse because I hate all this data collecting stuff, and there's no way to get your information back out, but I would feel like it was an okay deal for people that opted into it.