
When you're piecing everything together for your game, you're going to have to make a decision on how often you want to run events. Some games opt to run a high-frequency game, keeping players interested throughout the year. Other games choose to run only a handful of events with extremely high production value in order to assure players that they're getting a high quality service.
Either choice is fine, but there are certain things you should address when deciding on the type of game you want to run.
High-Frequency, Medium-Quality Games
These are the games that decide to run consistently around the year, anywhere from once a week to once every month. The game has a decent story and a few great props, but also has a lot of low production, mindless combat modules. Mind you, there's nothing wrong with that - everyone enjoys some mindless combat now and then.
The big benefit you'll be bringing players is a constantly evolving universe. Your games will have to be player driven, as you won't get a lot of return players if they don't have control over this game. Prices should be put in an area where you're breaking even or making a small profit month-over-month, depending on whether you're running it as a business or an NPO.
Players should be constantly craving more from your game. You want them to continue to perform actions (or at least think about what actions they want to perform) when they're not playing. This game integrates itself into the player's lifestyle, which can be good or bad, depending on whether or not your game is their primary LARP. Players often have to pick and choose between high-frequency LARPs, so you will want to do everything in your power to make your game their game.

Even games that appear to focus on combat (Dagorhir, Amtgard, etc) have excellent craft work and wear costumes at weekly practices. Games with no direct combat at all (Mind's Eye Theatre) have well thought out political stories and intricate costumes to go with it. I guess I would need your definition of low quality to understand where you're coming from.