I know what you mean, I hate it when a band plays a lot of samples and pre recorded material on stage instead of playing it live. I'm listening to a Blonde Readhead special on the radio know, though, and liking most of it (actually, most of the stuff they put on is from both of the albums that I already know).
The concert is about US$40-50, kind of expensive. Also, a good lady friend, who's a big Blonde Readhead fan but can't afford to go, is having a birthday party on the day of one of the concerts.