I think many people here are getting the idea. It's not a money added event, nor all matches takes place under one roof. Entry fees will fund the event, and make it self-sustaining. Local bars and poolhalls could start as feeder tournaments.
Lowering the threshold of winning, so more people would enter. If you make it a race to 10 in call shot 10-ball, then of course skill wins out. Make a race to 3 in 8-ball, and lengthen the race by 1 game every level advanced.
Each level could been 4 players, winning player advance to next level taking 1/2 the pot, and the other half funding the next level's pot.
Let's say entry is $10, not including green fees.
Win 1st match, you get your $10 back. Win 2nd match, you get shot at 2nd level. The other $20 goes to the 2nd level pot.
Make it a race to 3. So its maximum 5 games, or 10 games if you advance.
Level 2 fully funded with 4 people will have a pot of $80.
Win 1st match, you get $20 from the pot
Win 2nd match, you advance to 3rd level and the reminder $40 goes to 3rd level.
1st match, race to 3, 2nd match race to 4.
The idea here is to create a large base of amateurs and semi-pros who would be willing to take shots at very large prizes based on the incentive that anyone can win a race to five.