If you have some cash to spare please do consider to buy a place in LUX.
Anywhere is good. If you have access to around 350.000 you can get yourself a very decent 2 bedroom apartment. Prices continue to climb in LUX, and this is an easier way to make money than to actually work for it.
Just a personal opinion, though. Some people would prefer to rent or buy a house in Germany instead for the same price you would own the smaller apartment here. I did the latter and never regretted it.