Our last L5R campaign started with FFG, then changed to the Rokugan d20 (the 5e version) and finally reverted back to 3e (with bits of 2e Burning Sand converted on the fly)I was pretty excited to purchase Legend of the Five Rings 2nd edition back in 2000. The game was such a big disappointment that I stuck with 1st edition. I ended up with 3rd edition in 2005 and stuck with that for a while. I have the FFG version, but I'll probably never play it.
I stuck with 3rd edition D&D because I thought 4th edition wasn't a very good D&D game.
Not for me. At least, not in the RPGs I actually mentioned. If I like a game or system enough, I’ll buy it. At one point, I had something like 160+ RPG systems on my nerd-cave bookshelves, but I’ve pared that down under 100. Some of the remaining ones have never even been played.A lot of it has to do with investment I think, both in material and time. I have nearly the entire 3e run of Mutants and Masterminds, and have been collecting, playing and reading for years, and am therefore unlikely to abandon all that and move on to 4e when it officially releases.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.