Definitely I agree with you. No need to buy and wait for months. With the right moves, you can make a significant amount of money by making daytrades.
if you only sell with very small margins, for example 1%, it takes a long time for big profits right ? and that includes in the short term trading,
you need skills to analytical and monitors to know when the right time to buy, and it's not as easy as imagined...
But with the same success you can invest in stocks and learn how to trade, what's the difference?