When I bought Arcanum, it was $55. It was worth every penny. This game is a blast. The only problems are that combat can get very easy in the end of the game and that theives can blow through the game with ease. While reply value looks non-existant, there are so many character types you can try that it is playable for one or two more gos after you beat it the first time. The story is the single best story I've seen in a game. Music and sounds get annoying after 40 or so hours. Don't bother with the multiplyer...the game is too unknown to find anyone to play with, and the multiply maps aren't worth the time.
My rankings (out of 10, ten being the best):
Playability: 9 - running can be a pain as the best way is to click move with the mouse and scroll the screen at the same time wit hthe arrows. A very complicated game, but also an very indepth manual.
Story: 11 - Simply astounding. Better than many books I've read.
Sounds: 7 - Cool early on, but listening to it the whole time would be hellish.
Replay: 8 - Some missions are only availible to certain characters with certain skill levels, and there are MANY different character options.
Intangibles: 10 - Cool inventory, cool menu system, cool dialogs. Characters are given a race and background at the beginning, after that, there is nothing your character cannot do. The only classes you can get are the ones you give yourself, as any character can become a master in any skill. All of this ranks a 9...but there's one more factor...the instruction manual. It is actually entertaining. It is written as a guide to a newcomer of how to function in the lands of Arcanum. There is everything from teaching how to use maps to a recipe in the back, all the while being perfect in explaining how to play. The manual pushes it up to a 10.
Overall: 10 - This game is good for many hours of play, and you will not regret buying it.
For more info:
www.terra-arcanum.com I think that site is still up (I beat it two years ago...don't really remember the site much)
EDIT: I'm getting off, but you can PM me specific questions...I know this game insdie and out from palying it too much.