I guess I can drop my 2 cents here.

I can imagine that the sensitivity and weight of a rod versus the price goes in a pretty exponential curve. The way stereo equipment may see a huge difference between a $50 amp and a $250 amp. However, the difference between a $5000 amp and a $6000 amp is not as great. Having said that, at what point is the curve in fishing rods insanely steep? $100, $200, $300?

For example, the weight and sensitivity of a $10 rod may be painfully subpar compared to a $100 rod. But will the same hold between a $100 rod vs. $200? or $200 vs. $300?