It was more of a want than a need. I have a very large space to fill. If the 1015 isn't enough power for your room then none of the receivers anywhere near the same price will be enough either. I wouldn't worry about it too much.
The only thing I don't like about the 1015 is the crossover choices jump from 80 Hz all the way down to 50 Hz. I wish there was something in-between.