Well, the big open spaces are good IMHO.
The only example i can think of to back this one up right now is quite a lame one, but it's sound. Think of Lord of the Rings, right...these midgets gather together a load of people and go on some world-saving quest. When they set out, they don't just pull out a ring called "Mordor Warpring" and jet off to the volcano thingy, do they? No, they set out on ponies and trek for a year or two or three (probably exaggeration) over big expanses of open land, mountains, forests, blah blah blah, encountering villains and monsters every now and then.
And then when in book two two of the midgets get kidnapped by the badguys, the dwarf and the elf and the king don't just pull out their 6 RoTs and Minimap, looking for where the orc's heads are and zoom over there in 30 seconds, they follow trails and stuff taking them days and days to catch up.
This is what RPing should be like, going out on quests, or staying at home and having tea, or bustling cities like Gondor or wassname. The big ol' open spaces add to the element of proper Roleplaying, whether it being a parade through main to celebrate the coronation of a new King, or marching across the continent of (example) Forest to confront their army, or fleeing from battle to hide in the trees 'cause you're losing the battle and your character wants to run for hsi life, or sending a scout out into the trees to FIND a big hidden army or a fleeing enemy. So i say thumbs up to the big open spaces
RP is dead. the population is 90% PKers and non-RPers. we can't do anything to change that now, all we can do is gather the 10% that still RPs and RP with them, hoping that one day it will grow to 11%.