I'm glad they settled on square keys in the end.
I wasn't around for the heyday of the luggable but I do like how indestructible they look, and assume were. I still think about that guy I knew who got one of the first iPads when they came out. So much went into making them as slim and light as possible, it was their big selling point, and he immediately shoved it inside this big inch and a half thick titanium brick. And those rubber phone condoms are quite popular. It makes me wonder why they don't just manufacture the devices to be rugged to begin with.
The other thing I think about alot is that it's rare now to see someone operating a laptop or even a tablet away from a wall socket - and usually with a surface to rest it on. Plus I feel once you're past the threshhold of a pocket sized device it becomes something you'd be lugging around in a satchel anyways. And with modern SSDs boot times are pretty fast!
Maybe 2019 will be the Year of the Luggable.