Perhaps by some definitions but a currency/asset/financial instrument having value for a brief period of time doesn't mean it has staying power.
Adoption is still extremely minimal and real world utility pretty marginal.
And I'm pretty agnostic on its long-term usage. Just saying I wouldn't spike the football yet.
scarcity ( the big one ) and security Brother Pat. If every millionaire in the world wanted 1 bitcoin .. they wouldnt be able to buy one .. in other words theres more millionaires in the world than their are actual whole bitcoins. security wise the bitcoin blockchain has never been hacked. real world everyday usage is silly noone that believes in bitcoin thinks that its to be used as a point of sale currency. as far as a digitial currency for point of sale it will be something tied into a social media platform for moving money like a venmo type thing .. i will say as big of a long shot as it is, if LiteCoins litening netwrok ever took off , (1) that would be the best everyday digitakl currency BUT it would make bitcoin massively valuable as every node has to be staked with bitcoin.. or rather its a digital ledger that is settled in bitcoin.
forget all that .. just buy a casacious series 2 .. series 1 is the original so everyone wants one BUT series 2 has far less mintage and far less still intact as many people with a casacious opened them to cash in the first run to 20k .. im forgetting the numbers but lets say mintage was 1,600 i think it was less .. i know a year ago or so more than half the mintage had already been redeemed on the blockchain .. get you a one of those less than 1,000 in the world unreedemmed casacious .. last i checked they were going for appx 1.25 - 1.3 per .. ironically when the price gets lower that premium rises to about 1.5 as people hold them tigher