BUYING A DEPRECIATING GOOD WITH AN APPRECIATING ASSET

It's no news again that the CEO and Co-founder of Tesla motors made a tweet that a Tesla could be bought with Bitcoin.
Some investors claim that this move was made because of his high stake in cryptocurrency,the main deal is that bitcoin is the future currency.
Elon musk claimed that bitcoin would not be converted into Fiat currency.
Would does this serve the company,it means that the value at which one buys a Tesla for instance, a Tesla is bought at $70,000 worth of bitcoin which in time to come would increase.
For the time being,it's only in the United States that the payment would be available then later in the bitcoin compatibility would be available for others.