There’s also software solutions for this, you run them over your network from your main machine ;-) (latency in local network is neglible - for best results use LAN instead of WLAN tho)

why ppl buy the 512gb version still? - bought the 64gb version at sale (it’s cheaper now xP), replaced the ssd with 1tb one for under 100 bucks total, thus even cheaper than the 256gb version - as you should install a disposable screen protector anyway, wich cost just 10-20 bucks, there’s no point in etched glass eighter.