Haha, Katy! With all the junk offers I've gotten on my things that would only take one trade.

But then, that was mostly the earlier trades. I guess, for codestones and faeries, it's people hoping I'm a newbie who doesn't know what items are worth. By the time you're trading 40k+ items, most people guess you're not newbie.
I'm trying a somewhat similar experiment - only it's not really the same. I'm trying to trade until I have an FQD to get the avatar - cause there's no way I'll ever save up that amount.

I started with several items (codestones and a cheap petpet), added a few neopoints along the way, and now I have a Halloween Petpet paint brush. Also, I'm looking for items, not waiting for them. The total profit is, so far, about 60,000, I think..? I'd have to check.
I sold a few items when they got to hard to sell and traded the money from them (and a cheap item). At that point it's a lot easier to buy items - people don't want cheaper items, but they're happy to trade for a few too few neopoints. Heh.
Good luck with your trades - I might trade with you if I ever get that high.
