Competition among regional gambling companies has hampered growth and profitability for most of the last decade. As a result, the leading companies in the industry are deciding it's better to combine than to compete. Pinnacle Entertainment (NASDAQ: PNK) bought Ameristar Casinos in 2013 for $2.8 billion, and Eldorado Resorts (NASDAQ: ERI) bought Isle of Capri Casinos earlier this year. Now, Penn National Gaming, Inc (NASDAQ: PENN) is considering buying Pinnacle Entertainment, bringing together two of the biggest regional gaming companies in the country. If the merger happens, the combined company would have a presence in every major gambling market in the U.S. except the Las Vegas Strip. Image source: Getty Images. A deal we could see a mile away In reality, Penn National and Pinnacle Entertainment have been dancing toward each other for a few years now. Gaming and Leisure Properties Inc (NASDAQ: GLPI), the real estate investment trust created by Penn National, owns most of the real estate where Pinnacle Entertainment operates casinos. The two are effectively partners, and the deal will just bring their gambling operations together. The idea behind a merger like this would be to build a network of casinos that would keep regional players in-network rather than playing elsewhere. There would also likely be "synergies" proposed as part of the justification for a merger, although synergies don't usually play out as expected. Creating another gambling giant The reality is that Penn National and Pinnacle are facing both increased competition, as gambling has spread across the U.S., and stronger competition, primarily from Caesars Entertainment (NASDAQ: CZR) and MGM Resorts (NYSE: MGM). Combining Penn National's 27 casinos with Pinnacle's 16 would create a bigger network to build on. Caesars already has 18 resorts and MGM has 27 hotels, in locations as varied as Las Vegas and Springfield, Massachusetts, where it's building a new property. Bigger companies have been able to leverage their size and cash flow to expand in markets formerly dominated by regional players. MGM's National Harbor, a $1.1 billion resort in Maryland, is an example of a project built at a scale that smaller, regional players can't compete with. And as these megaresorts are built across the country, they draw players from the regional gambling parlors where Penn and Pinnacle have made their living. Are the days of small casinos over? I don't think a merger of Penn and Pinnacle will change the general trends taking place in gaming today. Gaming resorts are getting bigger and flashier as more states open up gambling to generate revenue. And as new casinos open in or closer to major urban areas, many relatively remote areas of the Midwest and South, where a lot of the gambling consolidation has taken place in recent years, could see competition put pressure on traffic. For investors in either company, a greater scale may help margins slightly and improve profitability. But unless the Penn-Pinnacle combo joins the fight for megaresorts around the U.S., I think individually they have an uphill battle against bigger players long-term. 10 stocks we like better than Penn National GamingWhen investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the 10 best stocks for investors to buy right now... and Penn National Gaming wasn't one of them! That's right -- they think these 10 stocks are even better buys. Click here to learn about these picks! *Stock Advisor returns as of November 6, 2017 Travis Hoium has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.