Where we live the market is especially tight. We ended up selling our home by saying we would not sell if you have a realtor and this is the price you will pay and you will not have an appraisal contingency. The very first people to come and look at it bought it. The market is very much a seller's market right now.
We also purchased a new home without having a realtor involved. These days, the Internet makes things so easy that there isn't a need for a realtor like there used to be.