Wow thats horrible advice man. Theres more to stocks then just the stock price. P/E ratios, PEG, dividend yields, debt, etc. You have to ask yourself why is that stock at that price. A 20% increase in your portfolio is 20% regardless of individual equity price. On another note, if you do options thinkorswim is great. If youre doing only equity trades, i like scottrade with $7 online trades.