Bitcoin is a store of value while technology will bring true to bitcoins white paper. How long will it takes for lightening network to arrive? That's like asking when is 5g available. At least we got segwit.
I think if the store is coming and then the digital money is coming, it's better to have a store with instant cash because it's now very hard to use digital currency for everyone. If there is a digital store with its own money has this value for people to buy things they want to buy.