If you are interested only in burning discs, then you don't need at all a suite. ImgBurn is an excellent burning software, and it has all the necessary to burn discs (and actually it has much more, but it's a very light software and certainly not bloated with useless applications).
However, the choice of a suite is related on your exact needs. If you need also an audio editor, a cover designer, and an avi to dvd converter, then nero is a good choice (even if not exactly cheap).
Again, if you need only a burning software, then ImgBurn is one of the best choices