Michael Quarles calls this wholetailing. I know people who have done it.
I get your thought but it is two different things. Now you have to a) have the money to close and b) deal with retail buyers, real estate agents, contracts going back and forth, bickering over tiny things, etc. With your method within the first week I probably have to see e-mails or talk to 20 different agents, look at 15 different offers, etc. Or I can call up a buyer I know is legit, give him the lockbox, and 2 hours later have it sold.
For me b) is 10x more of a hinderance than a.
I see you say this "Wholesaling is not an easy job and alot of drama and games are played behind the scene and many deals have falling apart because of it. I believe that if a wholesaler purchases the off market deal or even an auction deal, he/she could eliminated all the stress and games involve and just re-sell fast."
Where does the stress get eliminated? Instead of talking to buyers I actually know I have to deal with 20 different agents or buyers I have never met, 75% of which are probably wasting my time. How is this better?
edit
To be honest, I have thought about doing this with some properties and I might try it next year. However, I do not see how it is less work or stress.