Partly because I am always interested in new technologies and never cease to be amazed at the ability of some developers to create innovative things and in another because I know that there is still much financial potential in the ICOs, although we are in a bear market if we survive this, the next periods will be extremely prosperous.
This is also my reason for investing in any project. New technologies, new applications for blockchain and crypto, use cases for the projects and maybe eventually, one that will lead us to adoption. Tapcoin is one such projects I'm loving, their Hooch app allows me buy drinks and pay for my meals with the crypto. I also get to pay my hotel bills with it too. They have over 100k hotels and bars partners worldwide and what other use - case can get better than this?