Though I'd through this out to see what interest there might be...
How would any RK2 players feel about a "Trade Convention"? Sure, we have a trade channel... but I think it'd be alot more fun (not to mention more likely to attract 'customers') if everyone was gathered in one spot for that specific purpose... for one thing, you'd not have to sit around for hours hoping someone wants that item you're trying to sell.
I'm envisioning players who've accumulated a lot of gear 'setting up shop', as it were... tradeskill classes might look into putting together some of the (nonbroken) item recipies... people with tradeskill items sitting around could trade them to people who'd actually *use* them... players with high nanoprogramming skills might offer their services in return for *whatever*... maybe even a couple of small 'tutorial'-like events (I'm personally fond of offering to follow new players around, offering advice and tips, and only entering combat when they've obviously bitten off more than they can chew :wink... there are a lot of possibilities.
Naturally, lag might become more than a little annoying... but I can think of a few ways to 'spread the players around' to minimize that. It could even be a multi-day event, if I could manage to recruit other players to help organize and manage the thing.
Assuming that people like the idea, and if done, it turns out to be a success... I've got a couple of more combat-and-strategy oriented ideas that might be worth trying out. In any case, this "Trader Convention" would be a way to find out what would work on such a (theorhetically) grand scale, and what does not.
So.... if you've got some thoughts, please feel free to post them.
Oh, one more thing.... the reason I'm suggesting RK2 is because... well... I don't play on RK1. However, if someone wanted to set up something similar on RK1, I'd be more than happy to help plan it out.