I’m a poker dealer, so I hope online poker has peaked. 
In my state, you can only play poker legally at pari-mutual facilities or Indian Casinos. Low states of either location. Poker rooms have saved these places. We have a 45 table poker room that I would venture to guess brings in as much money as them broadcasting their races around the world. Jai-alai frontons are closing quickly, pretty much the only ones that are still open are the ones that were able to survive until the card rooms opened.
Poker will always be more popular than dog racing, horse racing and especially Jai-alai. You don’t need a dog, a horse or a fronton to learn to play poker. You need a deck of cards, a jar of pennies/rocks/whatever and someone to play with. I think this is the reason poker is as popular as it is, kids grow up playing it. (Perhaps I should say the reason poker has the potential to be as big as it is vs. other forms of gambling)
I’m surrounded by “professional poker players” everyone thinks they are one. They brag about it endlessly. However, a mathematical analysis of 30 minutes of their playing time can pretty much prove them wrong. I had a guy the other day brag that he hadn’t played with his own money since his second week of coming to our fine establishment. It was the 3rd tournament I had seen him be knocked out of that day. He is routinely there close to 12 hours a day, most days. I don’t consider him to be an exceptional player. I seriously doubt anyone would bankroll him for long. You just can’t win that much where I work. To just enter our large tournaments each week would cost $630. You would have to place in the top places pretty often to make that worth while.
On the face, everyone thinks they are a pro and few people will call bullshit on them. Most certainly not folks who do not play. Therefore they can walk around and tell folks they are Pros when in all probability, they are not.
IMHO, most of our players are retirees. They have a steady income, lots of them have pensions +social security, they are by far our bread and butter.
I guess what I am saying is that as a sustainable phenomenon, no, I don’t think it will continue like it has. However, as a relatively easy game to learn, the easy availability of it and the cache of being a pro will probably continue its success.
I began dealing poker almost 15 years ago. We operated at capacity pretty much all the time.
I don’t understand it, I hate playing poker. As far as games go, I find it exceedingly boring and the luck aspect is just, bleh.