When I first started out my business I had a shoestring budget, if that. I could not afford conventional Microsoft software like the OS and office suite, anti virus, graphics design software, accounting software and so on. GNU/Linux seemed the best route to go. However, I knew very little about GNU/Linux either. For a small fee, I paid for GNU/Linux support and had someone there to hand hold me through crucial moments when I did not have time to research problems on my own or when I got stumped by a bug. It was great to know someone was there, on retainer, whom I could call when things got rough. Now I do not need paid support, at this time, because I can sort out these issues on my own. However, if my business was to grow, I know not all employees can handle the GNU/Linux OS, so paid support is a good idea if I am too busy to explain everything. Paid GNU/Linux suport is one of the best things I ever invested in. Sure, there are some weird support staff at there, but that made for fun conversations and a lot of learning.