styggron: There are some very interesting missions thought that can help you get some badly needed credits. It is a pity you can't manually save so you can "go back". This is a feature I really need as I like to go back and "roll back time" and go from a certain point incase where I am is a problem.
OldGamesRBest: You can always just backup the save game folder, then copy it back later.
Yes I did work that out very early on ;)
The first thing I look for is keeping saves. I don't like "losing" everything and starting over. It messes with my Zen :)
It is also very important to me that I can FORK saves. So I can get to a point one save I do option A and another I do option B and I can always return to any state. That is how I like to play.