i'm mining there as well with two azure instances, also no payouts, waiting for the sendmany alternative

1 x A4 virtual machine 8 cores does 8 * 0.14 kh/s ~= 1.30 kh/s   cost $0,48/hour    (~$357/month)   <- just testing..
1 x D4 virtual machine 8 cores does 8 * 0.43 kh/s ~= 3.45 kh/s   cost $0,752/hour  (~$559/month)   <- better!

http://azure.microsoft.com/nl-nl/pricing/details/virtual-machines/#Linux

i use my msdn license so got nearly $ 100 free, when it's gone it's gone...