I get lonely on a hike by myself and while I want to go to Egypt, I don't want to do that solo.
Some destinations are better for solo trips than others. They just seem to lend themselves better to meeting people, eating out, seeing all that the locale has to offer. For example, I'm perfectly comfortable in any city and pretty much anywhere I can get on a bike and see the landscape (ie Lago Maggiore). I get lonely on a hike by myself and while I want to go to Egypt, I don't want to do that solo. My sailing adventure in the Greek Isles required companions, but Athens alone would have been fine.