Powermeters are undoubtedly the latest and greatest in training tools. It seems all the noteworthy coaches recommend them, and all (?) the pros train with them, so clearly they are great.
There also seem to be many folk on this forum who train with powermeters.
My question is: its worthwhile, but how worthwhile?
If you own one, are you glad that you do? Would you forego fancy tubbies and carbon seat posts, and run a steel rig with box rims, cooking your food over a candle to save up for one? or is it a bit like wind-tunnel testing; which can give amazing information, but is defintely not worth the cost for everyone?