RE: Free or Premium Software?
If I had to redo things, I wouldn't pick premium software. However, at the moment I have so many XenForo licenses. Well, the reason for my decision is due to the fact that phpBB is now totally mobile compliant with all themes. Also, that might be true with other forum software, but I know MyBB and SMF still need mobile friendly themes. Anyway, with the other free forum software, it's not a big deal to get a mobile theme. Anything is way cheaper than paying for so-called professional software.
Nonetheless, though, I can see the market for premium software, as everyone isn't as proficient at DIY (Do It Yourself) stuff. Also, some just would like many mods and stuff to come "out of the box". Others just might be so impressed with premium software, they're just in love with it and/or they really like a premium software only theme.