@engineer:
>> I am suprised ...! Why many are interested in relocating to a different country after German Citizen <<
Infact nothing comes surprised! Economy is in trouble and politicians increase their lohn and ofcourse increase tax on everything on rest of the population. What other options are left other than search for better place to save/keep your money?
>> At the end it will look like a German with limited German proficiency. Living in Australia and enquiring German Embassy with having limited proficiency in German. <<
Some guy who sits in "rollstuhl" to decides to provide German citizenship to an non-german to play for germany in Olympics, who cannot speak a word of german and have not lived in germany and have not paid any tax, pension,..., So why are you worried of limited proficiency? In my opinion you should'nt be!
>> Ops ...After all German passport is a bit of paper <<
Only i'm aware is that it's not made of gold. I hope you agree on that (atleast

>> In my view One has to consider this issue before relocating to a different country with German passport. <<
Ask some questions (what and how few years from now), and then you can decide. In case if you still decide to stay, then lets talk when you retire once again

!Cheers!