I do quite a bit of work-for-hire. Some I wouldn't do again (being published in
Dragon magazine, for example), others I still do. Every game review I've ever done has been "all rights." In theory, of course, those reviews could be reprinted a million times without me seeing another dime. In reality, that'll likely never happen. Game reviews just aren't terribly useful beyond a certain time period, and no gamers want to see the same reviews in multiple places. Game reviews pay decently as long as you don't figure out how much time you spend playing the game.
Another area that others might understandably disagree with is in the roleplaying industry. I do a lot of work-for-hire that pays very little. I do have an understanding of this industry and like most people, do it as much out of love as for money. Most of the
publishers can't even do it full time. They have day jobs and run their publishing business on the side. It's a business flooded by amateurs and semi-professionals, and I recommend people only get into it for enjoyment and to practice their skills.
Novels are one area I will
never give up all rights without a significant amount of money, and even then, only shared world fiction. I made the decision not to enter WotC's open call because I refuse to hand over rights to my current series.