Work that you write difficult config or install manually on many servers isn't worth of just $ 3 in a month?

Only $ 3 per, you can automatically work of these.

The work that you upload by dividing the number of files in the GB on server in the cloud  and  combine those files and enable file sharing by opening a port and install it on the each Server, how cost much ?

Work to upload file to the server in cloud is surprisingly difficult. In RDP, you can not copy file larger than 2GB.

http://goo.gl/U7xsLB