Are these sentences with the use of "as" correct? There were as many happy moments as there were sad moments.

There are always more people wanting to learn English than there are people wanting to learn Chinese.

You cannot expect the same thing from me, an amateur, as you'd get from a professional.

There won't be as many options out there for you to choose from as you'd have in a bigger city.

Here you won't have as many options as you'd have in a big city. (This sentence sounds correct, but does the last sentence make sense at all? Is it odd?)

So now we've decided that we're gonna use this one. But don't feel upset because your program didn't get picked, I can tell you it was just as good.

Thank you!