Black Friday and the days after may yield a great deal. I purchased several Samsung blu-ray players in a past year for $90 that retailed for as high as $250+. I'm not saying that I have the greatest player on earth, but it does the job and it didn't cost very much. Everyone that I know that owns one seems to be perfectly happy.
Just watch for a big sale if you're really looking for a cheap player. If you want something at the next level, consider something like an Oppo.