I'm a happy R4 user. All the games I want to play are playable with it. But I keep hearing that the R4 is dead and that I should buy another card. My neighbour is one of those!!! He has a new DSTT and is always telling me that my card is dead and should buy a new one, but except for the SDHC i cannot see any reason to change. Please tell me WHY should I have to change??