Straight up wholesale deals have always been and remain over 90% of my business.
National statistics show that over 30% of homeowners do not have ANY mortgage on their property, and they remain the best demographic for getting wholesale deals. If you don't have a mortgage on the property, you can't be upside down.
Short sales and REO's are absolutely potential avenues for finding deals in this market, but to overlook homeowners with good old fashioned equity is a mistake.
Obviously the majority of possible sellers will be upside down on their mortgages, but for me it was the same way in the peak of all this too. Even with targeted marketing, most people that have ever called me (over 90%) owe too much to even take my offer. That hasn't changed any over the last year.