Currently, I have a M3 slim that I use on my old DS. I think my fiance is getting me a Lite next month for my birthday with the deal that I'd give her my old DS and maybe even my M3. So now I have to get another M3 and I am undecided whether to get a slim again or the M3 Lite. I love how the Lite would fit perfectly in the slot. The only thing keeping me from making it an absolute buy is that it takes Micro SD cards. My cell phone takes the cards so I know how small they are. You always read how you have to be careful and that they aren't meant for constant removal and insertion in devices. Problem is that with a flash cart, I could be removing that card on a weekly basis almost. So my question is for those that have a M3 Lite, are the stories true about the micro SD cards? I don't want to buy a card and then have to buy another a few months later.