Comment The devil is moving parts. (Score 1) 12
Moving parts is the curse on durability.
Todays phones have 0 moving parts. If you exclude the external buttons for volume and power etc.
Moving parts are point of failure. Moving parts almost always point to a point of dust/liguid intrusion. Moving parts are extensive to build assemble and maintain.
Rollables as designed currently are a mess of moving parts. And in this LG phone case. Motorised moving parts. Which is even worse.
I don't really think you will see a rollable until almost all moving parts are gone. The only way I see them working is if you get a screen that literally rolls up all by itself. No extra casing, mechanisms etc. Just the screen that rolls up into tube around a solid core body. To do this the durability of the screen needs to improve vastly. The structural regidity needs to be a core attribute of the screen not the thing holding the screen.
And to top it all off it has to be cheap. Lets face if a rollable is going to wear out much faster than a modern gorilla glass phone. So replacement cycles are going to be much quicker. People will not shell out $3000 every 6-12 months for a phone. ( I acknowledge the apple cult does have a subset of people that do this. )