i'm not 100% positive, but i think my old 2002 first was $975... and i remember buying a city in late 2003 or early 2004 for $1095. and then by fall 2004, cities went up to $1150.
i didn't buy any bags all throughout 2005 and earlier part of 2006, so i'm not sure when cities went up to $1195.
Oh wow! They haven't really increased all that much then!