The only solution is to find a site that allows storage without the sync...and use an FTP program to always LOAD UP to their site.
Cubby does it..but it's expensive. Not many sync services allow you to FTP up to them..so do your homework.
But seriously folks...having 200GB in cloud defeats the purpose of having extra storage "in case of failure of drive" or trying to revert to an older version of a file you had...because once you put your main s h i t (docs, music etc) up on any sync or cloud site..that's it..if they lose your data or f'd up..the sync gets f'd up everywhere....AND all that GB data needs to sync on all your computers and dvices......so if you have 40GB of cloud storage then it's another 40GB on your Work computer..your iPad..and 40 GB on your home computer..and it just EATS UP GB EVERYWHER YOU GO!!!
So.....
The only solution I found was to create your own CLOUD by starting up mac SERVER APP..but before you do..you need to do some online tutorials on basic server setup. There are some great tutorials on Yosemite Server! and only do this on Yosemite..clean install. IF you migrate from ML there are a ton of issues.
The hardest part of server will be getting an SSL Certificate and installing it..and you might want to know DNS before you do. Plus you will have to register your own domain name and learn about that......but watch the videos. Once you have a Yosemite Server..you can Duplicate your s h i t onto an external slim drive and use that to connect to remotely as your Cloud drive....and keep your computer data the way you like it on your computer...and not syncing GB of data everywhere.
It's up to you what you transfer back and forth through your own server cloud drive..but at least it's for us who want to SYNC UP...and never down.
Oh..and this all works faster and smoothly when you have at least an ISP that has 25mb dl/10mb upload or FASTER....because its about speed in the end.