- Poor man's currency
How about a poor man who has no access to a computer or smartphone? 
- Middle class man's not very much. Middle class in developed countries have way better medium of exchanges (or are at least viewed as such), and middle class in developed countries aren't going to pay $6,000 for 1/10th of something, or $600 for 1/100th of something.
This logic is flawed when it comes to Bitcoin. Having 1/10th of Bitcoin doesn't mean you can't transfer it or sell it unless if it's "one" BitcoinAlso, a fraction of Bitcoin can still grow in value... So what's the point here?
1/10th of Bitcoin was worth $500 over a year ago, and it's now worth $5000