D4rkDragon
Lemon Dragon
Towns Folk
You do realize that what you're saying doesn't make any sense at all ?But it has more power(as no hinge) thus less lags....
Hinges doesn't have an impact on the system's performance or even on the battery! For both of them, the CPU, the RAM and the GPU remains the same, an ARM CPU with two cores (exception being the N3DS with 4 cores) @ 268MHz, a 4/6MB VRAM PICA200 GPU and 128MB of RAM (unsure actually, I think that only 64MB are available, as the 3DS' OS takes up half of it).
Now for the technical thing, I hardly see how can hinges affect the performance of the system since they're just used for the clam shell and to hide some of the wires. It's true that the 3D (the 3D functionality, not 3D games) might cause lag on some games because it's not some already rendered thing, since it's real-time 3D rendering, meaning that it takes maybe 0.5/1.5% of the CPU's power, and I'm generous. So, unless you have a solid argument, when it comes to hardware, 2DS = 3DS < N3DS.
Back to subject, I think I'll go with the 3DS. I'm not a 2DS hater (as those two paragraphs might let you think), but there are many varieties of well-designed 3DS around (yes, limited edition ones) that are really cool, and as many pointed out, what's good with the 3DS is that you have the clam shell (and automatic Sleep Mode), meaning it fits in your pockets. And, though it might be more of a gimmick, you also get the 3D feature, which is, even though some games don't use it properly, nice or well-made for other games; while the 2DS doesn't fit in your pocket, doesn't have an automatic Sleep Mode, isn't really convenient for StreetPass, and you get deprived of the 3DS' selling feature: the 3D.
So, sorry if that sounds boring and long to read, but even though the 3DS is more expensive than 2DS, it is worth it, and you'll be enjoying every single piece you'll have spent on it.