Thank you all for replying. I, too, am very skeptical about investing in individual stocks. I think it is nearly impossible to beat an S&P 500 Index fund or ETF (such as SPY).
That said, I do like following individual casino stocks. It gives insights into the gambling industry.
Following Melco Resorts (MLCO), for example, has been a lesson about the political risks of gaming. Melco Resorts invests heavily in the casino business in Macau, China. If one bought shares in early 2011 (for $7-8), they saw their shares shoot up to $44 by early 2014. Quite a return! The Communist party, however, soon decided to clamp down on Macau gaming and their shares have been in crushed since. Today, MLCO has made a roundtrip and sells at $8.5.
Both Las Vegas Sands (LVS) and Wynn Resorts (WYNN) have been crushed for several reasons, including their misjudgement (so far) to also invest in Macau. Meanwhile, locals casinos such as Boyd Gaming (BYD) and Red Rock Resorts (RRR) are near their alltime highs.
Since I have no special insight or training, I certainly wouldn't recommend anyone to invest in stocks. That said, if you have an interest in the casino industry, observing the gyrations of casino-related stocks gives one deeper insights into the state of the casino industry.