I wondered the same thing myself. I thought already that the stock Nebula eqs were better than anything I had.
Just grab the demos and you'll see. They are on another level.
Hints :analoginthebox.com and alessandroboschi.eu
Every single eq these guys have released is of top quality. Analog in the box are sampled at 44.1 and AlexB at 96. I mix at 44.1 so I favour those (don't like long loading time when conversion is involved), but both are top notch. I use 96 ones in mastering frequently, though.