"It's not as powerful as an iPhone because it isn't small enough."
Huh? What does that even mean? If you're trying to get people to see your point of view, it helps to have a coherent point of view.
If I gave you an iPad Mini tomorrow, you'd love it. Desire it. Use it every day.
Your post is a thinly veiled attempt at rationalizing why you don't/can't have an iPad Mini. Yes, the iPad Mini is a sour grape, right up until you taste one.
Maybe the OP meant that the Mini isn't as powerful because it has to drive a larger screen? But then the iPhone has a retina display, which requires more power to run than a non-retina display that the Mini has anyway...