I'm not the best one to answer these as I'm quite a newbie myself too, but I'll try...
1. Pro8mm is a company, which sells modified super-8 cameras, film and does processing and telecine. The reason for its bad reputation is caused by many things: Some people say they have received recanned film instead of new, some say their service isn't as good as it should. And well, then there is also the cost of their products. But I have no first hand information, I haven't done any business with them.
2. It's the feeling of
film. It is a great feeling to know, that work I have done isn't only magnetic zeros and ones on a plastic tape. And then there is the way the film looks like, video just can't beat it. It is true, that minidv does have a greater resolution (this has been argued to death) but it is mostly the grain structure that makes film more alive and is more important to me than resolution.
3.I have begun learning with videos. And I have done most of my shootings with minidv. But if someone wants to learn cinematography and real shooting, I'd say super-8 is the best alternative (or 16mm, if one has enough money). Knowing that one is burning money with every second of shooting can teach one quite fast to shoot well
