How much $ is required for a good turntable?

For $100 you usually get "plays crappy." All the turntables in this range are stamped-out throw-away devices. The music people almost universally hate them because they have tracking problems (different sound at the beginning and the end of the record) and the drive itself isn't stable enough to maintain speed, so you get wow, flutter and pitch changes in the songs.

See if you can borrow somebody elses--or better yet, find somebody with a good turntable and transfer your record there.