Okay, so I'm working on my own little real-time mmorpg using Sinatra and jQuery. There's like 100 tiles (50x50) and what not, you use WASD to run around. My question is:

Should each step call #update to the players class, so that if they quit and come back they're in the same spot (like all MMORPGs work) or would that be way too many db calls? 'cause it'd need to update for everytime they won a fight, gained skill points, etc. And if 1000 people are playing, that sounds hectic.