A small number of boutique advertising networks have successfully tackled this challenge and are making quite a lot for their trouble.
For instance, The Deck (http://decknetwork.net/): 30 ad spots per month, currently $7,900/ad, equals $237,000/mo (and they're always booked solid.) This doesn't even count their "roadblock" ads which are an additional $7,900/day. The best part about their ads are they're good. I've found quite a few excellent products through them over the years.
That's like wishing for all cars to be as good as Porsches. While I share your sentiment, The Deck is high-end advertising for a small batch of high-end advertisers.. people won't/can't/don't want to pay those rates everywhere.
For instance, The Deck (http://decknetwork.net/): 30 ad spots per month, currently $7,900/ad, equals $237,000/mo (and they're always booked solid.) This doesn't even count their "roadblock" ads which are an additional $7,900/day. The best part about their ads are they're good. I've found quite a few excellent products through them over the years.