If bitcoin's overloading network that causes slow, multi-hour long transaction confirmations and high fees are not bugs but features trying to mimic gold's unfeasibility as a currency than call it a spectacular success.
By that parameter, another coin with an actual usable network will come along and become the de facto digital money. Probably eth.
I think I am wrong here. After studying I found out this will give opportunity for devs for more innovations. Bitcoin is going to dominate. Specifically in countries like where I come from. 30% people don't have an bank account. No way they can get a credit card. Cash is only option but it is deflating every day. They can't even by a goat for Rs. 1000.00 now but could 3 few years ago.