To read, or not to read...
...That is the question.
To anyone who's actually read this entire thread this far - there's only one piece of advice I can give you: "Make up your own mind!". You can complete the game regardless of the character build you choose. So: if you like mindreading, then by all means reduce the cost. If you don't: then don't waste your skill points. Either way, have fun, and play the game the way you want to play it!
