There are some good magazine articles written in the past about Cam V No Cam...no doubt Cams gives you the extra 5-10% performance...and especially in lighter winds they excel, they also have a 'wider' wind range, they tend to 'pull you through the lulls' and you can sail deeper off the wind.
You can't bag a camless sail out like you can a race sail, if you do when you power up they get 'backhandy'
Having said that, drop a
big race sail in the ocean, let the luff fill with water...have fun getting that sucker up!

..this is where the camless sail kills it 1000 times easier to uphaul/water start.
What people need to consider is 'can I get that extra 5-10% out of that big fancy expensive hard to rig sail'...I'd say a lot of sailors can do with the extra water time, less rigging time, less hassle and just get out there and do it...lets face it , if your not making your gybes, struggling in tougher conditions..struggling with fitness and or strength, no sail is going to make you a rock star sailor...too many people focus on the latest gear instead of their sailing.
Even all the manufactures point people to their tuned down 2-3 cam /no cam sails in preference to their full on race sails...they know what's heaps easier and more fun to sail!
I think wave sailing is far more honest in this respect..often see guys on really old model gear just smashing it...you look at their gear in disbelief, but their skills speak for themselves, they focus on the sailing and the conditions, less so the gear.