Comment by zahlman

I think the bigger problem is having a rational basis for choosing a company and believing in its revenue prospects. It's probably gotten harder now that companies much more commonly reinvest their profits in the company or into stock buybacks, rather than paying a dividend, for tax reasons. (Modulo the tax effects, paying a dividend vs letting the stock appreciate should be a wash, but it's harder to evaluate the current fair value of a stock when your evaluation is based on the expectation of that fair value changing over time.)