You can't associate poker players with gambling either. Those are two completely different things. Of course you need luck with poker but you don't just depend on luck and that's the big difference. I think that poker is also older than (online) gambling. I'm still curious when online poker became popular and when it came on the market and originated. You also don't hear many new poker sites appearing, while at casinos and bookmakers you see one bookmaker after another emerging and new to the business.