Germany aint no cheaper.
Ive been living here for four years, and really the prices are steep too. The only benefit that I can get(because I am a US Servicemember) is the exemption from VAT taxes, which saves me a lot of money on mics, but German Citizens pay the same as Americans, heck more even. I know of one place in the US that can get prices that will beat the German retailers on German Mics. Thats all kinds of messed up. I do like not having to pay vat taxes, ive gotten a couple pairs of MGs that way , saved myself 200 bucks.
Ive never seen good mics in flea markets, or mics at all actually. Ebay it or someplace like vintageking for the good stuff.
-B.R