There are many reasons why people prefer gambling from gaming. For me it's mostly the time required for each of these. If I gamble I spend an hour doing it and can move to something else. Online gaming requires a lot more time as RPG games are divided into quests and many of them can't be stopped until you reach a safe point. There are boss fights for which you assemble a team and need to reach the destination and win the battle (I played some wow in my time ) I wish I had as much free time as 10 years ago.