Today I received a call from the windUh company. They wanted to know If I had licenses for their software being used in my company.
Off course, the enlightened person didn't bother to ask if we used any proprietary software.
I took extreme pleasure in informing the caller that we use GNU/Linux and open source software only. And we have personally managed to do more than 10,000 custom installations of Debian(squeeze,wheezy,jessie) in last decade across few cities in India for only a handful of companies. And 5% of them were Ubuntu.
I advised the same person if wishes to get GNU/Linux installed for his company, we shall be happy to help him through Debian Network installations. They can attain a speed of 60 Debian GNU/Linux/hour installed per hour.