I am with you, I think the computer system creates the holdings baised on. Your risk factor. But if you can not do it yourself, it is probably worth it. I myself have tested some of these things and they were the same if not better then my picks over the last 2 years. I only put about 25 perce t of what I have into them. Its atually not a bad feeling to let someone else manage stuff. My other thoughts were to try them out in case of me getting hit by a bus tomorrow. My familly would have no clue how to invest the money in the bank, and I wouldnt be able to guide them properlly without building a relationship with someone. Now If the bus things happen , I can happily say to let fido invest it all. So there can be other factors at play. And most people , even relatives , dont like discussing finance.