i was going to say the same thing....you need to get out more. there is a HECK of a lot more to hk than central.
as for drinking... hmmmm... last time i was in a bar was about 6 years ago! yes, when i was younger, going out to the bar/pub was great fun... but it DOES get old fast (as do those who frequently do it).
as others have said... yoghurt is not a staple of 95% of the population, so it is a LUXURY good and as such, you will pay through the nose for it! as a matter of fact, i would go so far as to say that most western food is a LUXURY. there is no way i could afford to eat here (all the time) what i would eat in canada. now... if you want to eat chicken feet... i'm guessing they are a lot cheaper here than "back home".
our family eats probably 50-50 asian/western. we are happy with that. when money is tight, we eat all asian. food is just as good, but 1/4 the price.
lifestyle... there is so much more than drinking....
think about how easy it is to travel. the luxury of being able to afford domestic help. travel within hk is easy and very affordable. nothing is very far from where you are.
stink? unless you live above a stinky tofu stall, or a durian seller. i do find the dried seafood places a little smelly, same as the chinese medicine places... but other than that, can't say that it smells any worse than any other city.