Well yea those are the advantages that really want me to get it, but considering the fact that I rarely ever get any spending money and I can get those gens on an emulator somewhere make me second guess myself. Either way, if I manage to scrounge up ten dollars I'll probably go ahead and get it.
I don't think you can trade online, just wirelessly. I mean the games are still fun if janky, really the best part is seeing how much has changed mechanically and design approach wise.