Kristian - Are you only looking for deals in CA? You know the buck goes further in TX, right? Just kidding.
For every wholesale deal I get, I can provide pictures, repair scope and estimates, recent comparables, and a full property analysis. I agree, it does make it easier to sell your deals when you've got your ducks in a row, so to speak.
Alex - I do agree with your post and I have successfully wholesaled deals off the MLS, but I only do that if I can get it so much cheaper than it was listed for that I can sell it to my buyers and they KNOW for a fact it's a good deal priced below what it was listed for. When I market these deals to my buyers and I can provide my full analysis, it can be quite effective. Most wholesalers don't take the extra steps to provide value to their buyers along with good prices. Some of my best buyers don't even need to see the houses in person before they commit to the deals since I've built the "partner" relationship with them and they trust my property analysis.
I believe real estate, and especially wholesaling, is a people to people business. The properties are just the products being bought and sold. The investors who are in it for the "quick buck" and screw over their buyers and then wonder why their deals don't sell always amaze me. Too bad some people can't buy common sense!