Quoted from BrewinBombers:davjoszie is right, they're different groups. A lot of people don't like losing to him.
Here's an idea; Take a page from the bowling ally manual: allow groups of 4-8 to get a games on free-play for a 30 mins or an hour. Throw in a bucket of beer and charge appropriately. Obviously this takes a single machine out of rotation for the rest of the players around, but it could be a unique experience that allows a group of non-regulars introduce pinball as a possibility into their 'night out' plans.
This is kind of a cool idea. It would be interesting to have 'pod' like things with table & chairs, 2 or 3 games from different eras or thematically similar or whatever, that you rent for a time period. The hard part would be balancing the pods well enough that there weren't just a few that everyone wanted to use. With bowling, every 'lane' is essentially the same.