Quote from Optionspoet:
There is much more paperwork and negotiating involved compared to foreclosures. Also tracking the properties is much more difficult since you would have to know which properties are in threat of foreclosure before it is actually published. Other than paying an agent a hefty commission, it would entail some cold calling to mortgage companies...and then seeing if what they have available is even worth investing in.
If you are considering investing in real estate, buying foreclosures would be easier in my opinion. It would just be a more long term investment, as opposed to a quick flip. I figure it would also be a bitch to get a decent loan nowadays.