I got an R4 with an EZ3in1 slot2. I don't regret it a single bit! I've got: any NDS game I want, Portrait of Ruin working just fine, Opera browser working with the 3in1 RAM expansion, GBA games working with GBAldr, rumble on Metroid Pinball... I don't see what more I'd want. If you want rumble or Opera you can always choose to get a 3in1, it works just fine with the R4, and it'll still be cheaper than ditching your R4 in favour of an M3DSReal, which as far as I can see ONLY has rumble, and no GBA NOR memory or Opera RAM expansion.