Since I need more flash memory for my Samsung Galaxy S4 smartphone I was thinking about buying a second microSDHC card to use for one of my DS flash cards. I have an R4i-SDHC (red box), an AK2i and a SC DS2. Would buying an "Extreme" 32 GB or an "Extreme Pro" 16 GB card from Sandisk be considered overkill? That is, would there be any noticeable speed difference when comparing these cards to the Transcend "Ultimate" microSDHC cards that I know and love? In particular, with DS flash cards, would I be able to tell the difference when playing/saving/loading games? Those Sandisk cards are very expensive, so it would have to be worth it for a purchase... I don't own a 3DS yet, let alone a Gateway, but it's well possible that I will in the future. That might be reason enough to go for the fastest cards, right?