A low percentage of people enjoy poker. And of those people, a low percentage like to play regularly. So, the probability that a lot of your friends enoy poker regularly is very low. Therefore, it's imperative that your game grows, constantly. If it's not growing it's dying. You need to ask those few that enjoy poker to bring friends (which of course is a security risk, but we all like a good gambool, right?).
When I restarted hosting about 7-8 years ago, I struggled but managed to get 6-10 player STTs. The first tourney was easy since everyone was excited, but trying to gather players to a second one 4 weeks later was extremely hard. People were like "Poker.....again? So soon?"
Out of the regulars back then, there's only me and one more left. So without growth, there would have been 2 of us left playing heads up!
We're around 20 per game now and have been for 4-5 years, and I hardly knew any one of these players 6 years ago. Not to mention that of the player pool 2 years ago, only half are left. If it ain't growing, it's dying.
Almost true. Thankfully, there are exceptions. Find them!