For me, it's not as important as it used to be, but definitely preferred. As long as the phone comes with great amount of space and cheap enough, then I dont mind. However, if I have a choice and there are no huge differences in specs between my options, i'll go with the card support. My only complain with phones that doesnt have sd support is that you are somewhat forced to buy the more expensive package due to size limitation. If they just implement a minimum of 64gb storage at the very least post OS installation, then I really wouldnt mind, given that they dont jack up the price even further. Right now, I have 16gb S5 with 64gb card in the slot. Im okay with the storage, but having problem with 16gb (unrooted) for my apps with google lock down on SD cards.