In order for bitcoin to hit levels of $250,000+...... it will need to be accepted and marketed everywhere. So far, Microsoft accepts bitcoin. This could be the ice breaker and the door opener for other companies such as Apple, Sony, Google, etc down the road, eventually leading to retailers such as Walmart and franchise such as Mcdonalds.
In order for bitcoin to take off to levels that seem ridiculous right now, we will need to see the average Joe not only be holding bitcoin..... but also be spending it. (In this case, $250,000 could possibly be severely underestimated)
The network can't cope with more than 250,000 transactions per 24 hour period.
That was why some developers got fed-up and forked the chain to create bitcoincash, which has 8 mg blocks. If adoption as a currency happens, it won't be on bitcoin - it will be on the other chains, bitcoincash, ether, doge, litecoin etc.