I'm not sure what sparked the question. One consideration might be to use something less than the maximum. I can use bigger cards, but don't go higher than 64 gb just so that it forces me to change cards from time to time, partly as backup. So if one malfunctions then I haven't lost everything. The bigger the card, it seems the higher the risk you lose everything and the time it takes to change cards now and then is very small and they are small enough that carrying extra is no problem.