i have done the same every now and then by losing interest...but i have never uninstalled it...it is too good of a game to do something so low to it.  yes, reinstall it and preorder the new expansion.  you'll thank us.

-Phalnax

Online multiplayer counts...could use some beefing up.  During European and North American prime time you can sometimes find 100 people online at once and then it isn't hard to find games or to start games and have them fill.

If you like playing multi, then play it.  Don't let your lack of experience stop you from learning from pros. 

Actually, the online multiplayer player counts on Ironclad Online are not too impressive and do not seem to be reflective of a game that sold 500,000 copies.  Presumably the overwhelming majority of people who bought the game play it in single player.  You can find (or start) games you'd want to play without too much trouble if you're on during the European and North American prime times, but at other hours you might have to take what you can get.

Look forward to seeing you join us online.