The masses are becoming interested in cryptocurrencies right now because they are seeing a lot of events of people getting rich off of bitcoin and other alt coins in the media. Most people are scared of missing out on this rush and want to get in on what they think is "easy money." However, most don't understand any of the underlying technology of cryptocurrencies to make a smart investment. Simply educating people about crypto in the most convenient, easy way possible would be a good way to sell shovels right now in my opinion.