It's funny how both sides of the argument think that ads are something people has to "put up with". If ads are really that good, not watching would cost you (either money or a nice opportunity for good products). For now I don't really see that much of benefit of seeing them (it's the absent of benefits so it's really hard to measure though). I hope web ads companies one day start producing ads that are actually pleasant to watch (some TV commercials are doing a good job here). Until then, you can't really stop people blocking ads.