Hey Paul,
Thanks for the reply – and congrats on your success in the other gambling sectors!
Truth be told, I’m not really “achieving” anything yet – see how I started the thread – I was the one originally looking for guidance 
…my article stated that I was planning on it, and now after redesigning my site, I’m trying hard to follow through on that plan.
What I can tell you is that at the moment I’m just a part-time affiliate (I wrote a 4-article series on that here on CAP as well) and I just love poker, so my one site is what I have the time, passion, and dedication for tackling in my spare time… hopefully one day down the line if and when it gets big enough and the circumstances permit, I can try and make the switch to full-time.
On my site you’ll notice 2 little 125×125 banners. One of them, the GIF, is actually for a mobile poker app which I co-created so technically not really an ad 
(feel free to try it though )…the other I just put up yesterday. I don’t know if the advertiser would like/care for others to know how much they’re paying, but what I can tell you is that we agreed to a flat monthly rate after I showed him some stats (I’ve got 2,000 unique visitors a month, climbing slowly, steadily and surely).
In any event, yes 100% for sure the market for gambling ads flat rate and CPM is far higher than for pretty much any other industry. The better sites out there deliver in terms of a high-quality audience, so even if you’re talking relatively low traffic, it’s all excellent traffic with high conversion potential. My audience in particular is mostly in the U.S. so online poker advertising doesn’t really do anything for them….but for products they could be interested in, an advertiser should be (and is) willing to pay.
Hope that helps…