Good Paddles under $100?

[MFSB]

So, what is the difference in paddle performance? I have simple paddles that my wife and I use on our kayaks, we aren't familiar with the differences in an expensive versus cheap. Seems to me that the big concern is paddle shape and square inch of paddle, and ergonomics. When I picked up my kayak from OEX I didn't see any difference in paddle design from what was there compared to the cheap one I bought. I would appreciate any info someone would provide that would empirically measure the value in spending more on my paddle. I don't mind paying for something that I can get more out of, but not if I don't really feel the difference. If it is just a ford versus chevy thing, then I will take my ford and be happy.