I believe that was Warren Buffett explanation on Bitcoin a while back, during Berkshire Hathaway quarterly earnings report.
Assuming the node network and mining remains intact... now you own a pretty valuable and difficult to replicate infrastructure. At least some people will want to own the "native token" of that network.
How is that a realistic assumption? The infrastructure goes dark as soon as the mining incentives disappear. You own an internet relic, a MySpace page