1. SQL Server 2014 Developer Edition, fully functional but not for commercial use (producing demos is allowed);
2. Excel 2013 with PowerPivot, fully commercial;
3. Visual Studio 2013 Professional, also fully commercial.
In September-October 2015, I attempted to contact with Microsoft about getting fully commercial license for SQL Server 2014 and its total cast.
Their ballpark estimate was around $12,000 for 2-3 more servers with Windows Server 2012, Azure, SharePoint and some other stuff.
I was not able to get from Microsoft people anything in writing.
So, for now, I am producing various Demos to attract potential customers: small business owners who need various kinds of business reporting that allow timely detect transactional discrepancies, irregularities and unusual activities.