Certainly there is a strong training emphasis on climbing for racing cyclists. Typically, you either climb well or you never make the break-away or finish with the first part of the peloton.
And of course some people are more or less suited to climbing or flat-road riding by their physique. But for all the those "normal" cyclists, how does one determine the best training mix?
Do most people spend enough time riding the "flats" by default? Are there people in hilly areas that actually "need" to find more flat ground to motor along evenly during training?
Obviously a case by case decision, but what would be the answer for the "general cycling population?"
Does general interest in cycling suffer in extremely hilly areas?