Why do you need a MicroSD? They're unreliable and FAR slower than the flash built into handsets. These days, with cloud storage, there's no need for that much storage anyway
Strong enough case for MicroSD in my view...easy to load up a card with content (my entire MP3 collection in my case, other use cases exist) and take it from one device to another with minimal hassle.
Cloud storage is only as good as your network connectivity, and accessing it eats into your data allowance, whereas a MicroSD is available and free at point of use. Yes, MicroSD cards do fail, but you I'm sure you'd find yourself without network coverage more often than you;d find yourself with a knackered SD card.