The lack of peeps in the desert is probably due to the release of the other games and expansion pack and the lack of many quests actually in the desert area. It really is a bit of a stop gap area before you get to the S. Shiverpeaks. As for runners, well most people who are going there now are doing it with additional account characters, and simply can't be bothered to find the way to the outposts/missions and additionally can easily afford the gold required to get the runs.
The desert and a lot of the prophecies areas have been a bit neglected of late and as such people have lost interest in playing there much. The last real update to the area was the griffin nurf, when we got a new monk boss to replace 55 monk farming area! We need a few more quests/ideas to get the old areas going. HM in the desert is a breeze.
On the other hand, at least you are playing the game the way most of us did the first time and learning the hard way which of course, is the best way.
In addition, you have the advantage of these forums as well as guildwiki, which of course I and others never had when I did a lot of those missions with just me and some hench. Good luck though all the same
