I can see the value in offering a complete listing – I used to aspire to do the same, and I also listed everything, including programs that would not pay.
Over the years the number of my listings has been shrinking and shrinking and shrinking… I got tired of sending traffic into space.
I work hard to attract this traffic and I am not giving it away for free anymore. I still carry a lot of programs that are not paying off well – but partially that is precisely because I carry too many of them still, the competition is too big.
I still believe offering a lot of casinos is good for me – spreads out the risk and also pleases my repeat traffic. But I have started more and more pages that only highlight a few programs.
If you can make it work for you, if you can get big enough to be able to absorb the loss of traffic to non paying places, more power to you! It is an ideal idea. But – I could not make it work and have shifted focus a lot over the years.