$Alphabet(GOOGL.US)Don't put too much money into Google, but don't put none in either, as it's a ballast. Google may experience a period of decline. After all, whoever is in debt is the one whose money is being made (like when China had a nationwide property speculation frenzy, developers and the government were making money off the indebted homebuyers). Right now, the money from selling shovels is the most certain. Money put into Google is safe money; don't expect it to outperform the returns from selling shovels. However, looking to the future, Google's method of digging for gold is the most scientific, so it's paying for the future.