[AJ007]

I don't think anyone is saying aggregators should not show up.

Do a search for a local hotel. I just did one. I counted 3 aggregator ads above organic results. 6 aggregator ads on the side, 2 other hotel ads on the side.

Organic listing #1 is the hotel, that is good. 7 other results are aggregators. 1 is the hotel parent company, 1 is an unrelated hotel.

What happens if you are a niche travel site, or a local blog? Your not going to rank. Your business model is now more or less dead.

[Kalium]

I don't see the problem with that. Not all niche business models should be assumed to be indefinitely viable.