If people are planning out 6 weeks of investment, they are doing it wrong, this is not something that you do for just 6 weeks, the plan is inherently wrong from the start without even starting out. If you want to invest into a casino, you do not check it every week, you do not call it quits after 6 weeks as well, you wait for it, not just few months neither, some people may say "I waited 6 weeks, how long should I have waited 3 months?" and the answer is no.
You should start off with thinking of investing for a whole year, that way you would at least know that you will make some profit, that way you will actually get a good grip of how much you could make that way. After a year, unless you need the money for something urgent, you could keep the money in there as well, because if you profited well enough (which I think will happen after a year) you will want to continue.
Well, on the other hand, I have had really good luck with some other places using only a few weeks of investment, but that is what I meant when I said sometimes you depend on the variance but you are right,,, it is really the long term potential that is most attractive in these kinds of offers. Of course, putting something in for a few weeks is a form of gambling, with the benefit being you are unlikely to lose everything in that short time.
Anyway, to each his own. We still benefited from those 6 weeks of his bankroll (helped spread our losses)!