These businesses are so strong that a stock split would just be icing on the investing cake.A common misconception in investing is that a high share price equates to an expensive stock. Valuation, a measure of a stock's cost, is based on factors other than the share price. Mainly, the number of shares attached to a company's market value makes a big difference to the per-share price calculation.Despite this, it's understandable that some investors might shy away from stocks with triple- or quadruple-digit s ...