People who use "busy" to feign being important.

Since I've moved I've noticed a decrease in this which is good, but for awhile I felt I was surrounded by people who were always just "so busy." I was working full time and working on my doctorate degree full time (pretty darn busy), yet always found time to see a movie or go out to eat with these same friends who would respond "I'm just so busy" if I suggested or asked for time to see a movie or dinner. It didn't take much for me to realize what was really going on. I was being used as a means to create their delusion of self-importance.

Anyone else have these types in their life? What's with this?