This is true, Chase. There are a lot of opportunities to consider. I agree with Mike -- your problem isn't going to be selling kits. No players means no kits being sold anyway.
Now, I suppose the events don't make much profit. But they are zero overhead money for the store that doesn't involve tangling with GW, even if not a lot, and also a way for you to get money out of people who already own things. My Space Wolf army is huge, I have no need to buy more except the occasional conversion fodder piece. Why would a person like me ever set foot in your store except to attend an event?
I mean, the game is 25+ years old, there are probably a lot of guys in that boat, you know? I realize it's not profitable to cater to them, but it's also potential event money lost.
EDIT: Brad and I know each other very well and he is without a doubt an excellent player.