I don;t understand the GBC comparison, the GBC was an (ill) though out new system with completely different specs, and was a far step up (despite, like the original GB being horrible inferior to the competition)
The New 3DS can't be compared to the 32X either. Because the New 3DS is going to cancel out the older models regardless of whether it has 100 exclusive games or 20. This revision was basically made to make t seem like a new system to extend 3DS life and play back 3DS games. While killing the original 3DS lines, and the 2DS which technically is already dead.
Most of the actual upgrade is buttons too. Power is 20% more and only maybe 10% of that will actually show, look how bad Xenoblade runs.