Excellent point! If they did create their own coin, what would be the asset behind it? It would have to be used as a "vessel" for investing. And in that form the value would be what the traders make it to be? So, then they may have to resort in using a variety of cryptocurrencies (coins and tokens) in order to handle the massive volume. Something with a high volume. However, that is assuming they would "only" accept crypto as a form of payment which would never happen. So a combination of accepting both fiat and crypto as a form of payment could work.