Cost and local availability. I can get a name brand 128 Gig micro SD for around $15 locally. For a name brand compact flash, 128 Gigs is closer to $70. Local

Cost and local availability. I can get a name brand 128 Gig micro SD for around $15 locally. For a name brand compact flash, 128 Gigs is closer to $70. Local availability because I've been bitten a few times by counterfeit flash storage.