The Apogee's are not electrostatic but I think I know where you're going. Actually, the Sound Labs that I owned were VERY dynamic--not bass thumping as in a subwoofer, but PLENTY realistic enough for my musical tastes. Plus I was using them in a room that's about 25X22X20, and open into a kitchen area through two 6'plus casement doors at the opposite end of the speakers, and open above and behind them to a loft area on the second floor. Needless to say, VERY large an area. So any lack of dynamics would have been easily a problem in that size room.
Maybe at least looking at current day Electrostats of Sound Lab quality might be worth while. With your budget, I would think you could find something. IMHO