I am on my fourth folder and I swear now that internal hubs are so well made and reliable that there is no reason for me to even consider getting a bike with derailleur gears. Yeah they are a pound or two heavier but so what? A person's water weight can fluctuate even more than that within a days time. And yeah you can only get 7-8 gears out of them but so what? How many people actually use 23 or 27 gears whatever. Even with a 7 gear bike I am seldom ever in the lowest or highest gear.
I am also sick of constantly having to adjust the derailleur after like 12 folds and cleaning the cassette and chain ring and how fast they wear out sucks too.
oh, I also like being able to pop it into any gear I want while stopped.